v3.22.0.1
Allowance for Credit Losses (Financing Receivables Credit Quality Indicators) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year $ 22,558 $ 23,532  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 15,438 13,322  
Financing Receivable, Originated Two Years before Latest Fiscal Year 9,128 9,190  
Financing Receivable, Originated Three Years before Latest Fiscal Year 5,150 5,618  
Financing Receivable, Originated Four Years before Latest Fiscal Year 3,649 3,912  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 8,572 8,685  
Financing Receivable, Revolving 23,013 20,657  
Financing Receivable, Revolving Converted to Amortizing 85 76  
Financing Receivable, Unallocated [1] (191) (274)  
Loans, net of unearned income (87,784) [2] (85,266) [2] $ (82,963)
Commercial And Industrial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 11,305 12,476  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 5,372 6,474  
Financing Receivable, Originated Two Years before Latest Fiscal Year 3,990 4,101  
Financing Receivable, Originated Three Years before Latest Fiscal Year 2,027 2,572  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1,678 1,214  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2,715 2,564  
Financing Receivable, Revolving 16,731 13,508  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (60) (39)  
Loans, net of unearned income (43,758) (42,870)  
Commercial Real Estate Mortgage - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1,417 1,414  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,157 974  
Financing Receivable, Originated Two Years before Latest Fiscal Year 724 971  
Financing Receivable, Originated Three Years before Latest Fiscal Year 695 606  
Financing Receivable, Originated Four Years before Latest Fiscal Year 411 421  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 766 874  
Financing Receivable, Revolving 124 148  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (7) (3)  
Loans, net of unearned income (5,287) (5,405)  
Commercial Real Estate Construction - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 69 62  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 62 78  
Financing Receivable, Originated Two Years before Latest Fiscal Year 24 40  
Financing Receivable, Originated Three Years before Latest Fiscal Year 34 30  
Financing Receivable, Originated Four Years before Latest Fiscal Year 22 30  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 52 51  
Financing Receivable, Revolving 1 9  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (264) (300)  
Commercial Investor Real Estate Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1,858 1,737  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 977 1,478  
Financing Receivable, Originated Two Years before Latest Fiscal Year 1,217 1,271  
Financing Receivable, Originated Three Years before Latest Fiscal Year 633 267  
Financing Receivable, Originated Four Years before Latest Fiscal Year 160 67  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 106 179  
Financing Receivable, Revolving 494 400  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (4) (5)  
Loans, net of unearned income (5,441) (5,394)  
Commercial Investor Real Estate Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 135 255  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 355 638  
Financing Receivable, Originated Two Years before Latest Fiscal Year 430 297  
Financing Receivable, Originated Three Years before Latest Fiscal Year 82 1  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1 1  
Financing Receivable, Revolving 593 688  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (11) (11)  
Loans, net of unearned income (1,586) (1,869)  
Residential First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 4,810 6,383  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 5,911 2,094  
Financing Receivable, Originated Two Years before Latest Fiscal Year 1,361 1,048  
Financing Receivable, Originated Three Years before Latest Fiscal Year 587 1,266  
Financing Receivable, Originated Four Years before Latest Fiscal Year 783 1,534  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 3,894 4,098  
Financing Receivable, Revolving 9 10  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (157) (142)  
Loans, net of unearned income (17,512) (16,575)  
Home Equity Lines of Credit [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 3,632 4,433  
Financing Receivable, Revolving Converted to Amortizing 85 76  
Financing Receivable, Unallocated [1] (27) (30)  
Loans, net of unearned income (3,744) (4,539)  
Home Equity Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 668 498  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 375 317  
Financing Receivable, Originated Two Years before Latest Fiscal Year 203 298  
Financing Receivable, Originated Three Years before Latest Fiscal Year 189 403  
Financing Receivable, Originated Four Years before Latest Fiscal Year 271 386  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 786 790  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (18) (21)  
Loans, net of unearned income (2,510) (2,713)  
Consumer Credit Card Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 1,198 1,228  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 14 15  
Loans, net of unearned income (1,184) (1,213)  
Other consumer- exit portfolios      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 400  
Financing Receivable, Originated Two Years before Latest Fiscal Year 244 838  
Financing Receivable, Originated Three Years before Latest Fiscal Year 475 405  
Financing Receivable, Originated Four Years before Latest Fiscal Year 211 250  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 134 123  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (7) (19)  
Loans, net of unearned income (1,071) (2,035)  
Other Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 2,296 707  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,229 869  
Financing Receivable, Originated Two Years before Latest Fiscal Year 935 326  
Financing Receivable, Originated Three Years before Latest Fiscal Year 428 68  
Financing Receivable, Originated Four Years before Latest Fiscal Year 112 10  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 118 5  
Financing Receivable, Revolving 231 233  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (78) (135)  
Loans, net of unearned income (5,427) (2,353)  
Pass [Member] | Commercial And Industrial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year [3] 11,098 12,260  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year [3] 5,231 6,115  
Financing Receivable, Originated Two Years before Latest Fiscal Year [3] 3,711 3,550  
Financing Receivable, Originated Three Years before Latest Fiscal Year [3] 1,781 2,413  
Financing Receivable, Originated Four Years before Latest Fiscal Year [3] 1,625 1,166  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year [3] 2,611 2,493  
Financing Receivable, Revolving [3] 15,794 12,138  
Financing Receivable, Revolving Converted to Amortizing [3] 0 0  
Financing Receivable, Unallocated [1],[3] (60) (39)  
Loans, net of unearned income [3] (41,791) (40,096)  
Pass [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1,404 1,379  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,095 882  
Financing Receivable, Originated Two Years before Latest Fiscal Year 671 913  
Financing Receivable, Originated Three Years before Latest Fiscal Year 663 547  
Financing Receivable, Originated Four Years before Latest Fiscal Year 381 401  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 724 801  
Financing Receivable, Revolving 122 140  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (7) (3)  
Loans, net of unearned income (5,053) (5,060)  
Pass [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 68 61  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 61 75  
Financing Receivable, Originated Two Years before Latest Fiscal Year 24 39  
Financing Receivable, Originated Three Years before Latest Fiscal Year 30 24  
Financing Receivable, Originated Four Years before Latest Fiscal Year 20 24  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 42 40  
Financing Receivable, Revolving 1 9  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (246) (272)  
Pass [Member] | Commercial Investor Real Estate Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1,783 1,663  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 808 1,243  
Financing Receivable, Originated Two Years before Latest Fiscal Year 900 1,137  
Financing Receivable, Originated Three Years before Latest Fiscal Year 580 252  
Financing Receivable, Originated Four Years before Latest Fiscal Year 144 65  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 95 162  
Financing Receivable, Revolving 487 332  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (4) (5)  
Loans, net of unearned income (4,793) (4,849)  
Pass [Member] | Commercial Investor Real Estate Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 135 224  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 343 601  
Financing Receivable, Originated Two Years before Latest Fiscal Year 404 266  
Financing Receivable, Originated Three Years before Latest Fiscal Year 82 1  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1 1  
Financing Receivable, Revolving 593 679  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (11) (11)  
Loans, net of unearned income (1,548) (1,761)  
Special Mention [Member] | Commercial And Industrial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 54 133  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 43 250  
Financing Receivable, Originated Two Years before Latest Fiscal Year 177 376  
Financing Receivable, Originated Three Years before Latest Fiscal Year 147 84  
Financing Receivable, Originated Four Years before Latest Fiscal Year 25 5  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 77 48  
Financing Receivable, Revolving 383 722  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (906) (1,618)  
Special Mention [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 7 18  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 48 31  
Financing Receivable, Originated Two Years before Latest Fiscal Year 12 23  
Financing Receivable, Originated Three Years before Latest Fiscal Year 11 22  
Financing Receivable, Originated Four Years before Latest Fiscal Year 12 10  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 16 44  
Financing Receivable, Revolving 1 6  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (107) (154)  
Special Mention [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 1  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 2 2  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1 2  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2 0  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (5) (5)  
Special Mention [Member] | Commercial Investor Real Estate Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 23 5  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 84 77  
Financing Receivable, Originated Two Years before Latest Fiscal Year 223 76  
Financing Receivable, Originated Three Years before Latest Fiscal Year 21 15  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 9 7  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (361) (180)  
Special Mention [Member] | Commercial Investor Real Estate Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 30  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 12 36  
Financing Receivable, Originated Two Years before Latest Fiscal Year 26 31  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 0 9  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (38) (106)  
Substandard [Member] | Commercial And Industrial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 83 41  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 76 50  
Financing Receivable, Originated Two Years before Latest Fiscal Year 57 78  
Financing Receivable, Originated Three Years before Latest Fiscal Year 90 55  
Financing Receivable, Originated Four Years before Latest Fiscal Year 17 20  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 12 4  
Financing Receivable, Revolving 421 490  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (756) (738)  
Substandard [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 3 3  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 8 38  
Financing Receivable, Originated Two Years before Latest Fiscal Year 34 16  
Financing Receivable, Originated Three Years before Latest Fiscal Year 11 16  
Financing Receivable, Originated Four Years before Latest Fiscal Year 6 4  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 12 15  
Financing Receivable, Revolving 1 2  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (75) (94)  
Substandard [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 3  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 1  
Financing Receivable, Originated Three Years before Latest Fiscal Year 2 3  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 4  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 3  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (2) (14)  
Substandard [Member] | Commercial Investor Real Estate Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 52 69  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 85 114  
Financing Receivable, Originated Two Years before Latest Fiscal Year 94 57  
Financing Receivable, Originated Three Years before Latest Fiscal Year 31 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 15 2  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 9  
Financing Receivable, Revolving 7 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (284) (251)  
Substandard [Member] | Commercial Investor Real Estate Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 1  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 1  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income 0 (2)  
Non-Accrual [Member] | Commercial And Industrial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 70 42  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 22 59  
Financing Receivable, Originated Two Years before Latest Fiscal Year 45 97  
Financing Receivable, Originated Three Years before Latest Fiscal Year 9 20  
Financing Receivable, Originated Four Years before Latest Fiscal Year 11 23  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 15 19  
Financing Receivable, Revolving 133 158  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (305) (418)  
Non-Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 3 14  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 6 23  
Financing Receivable, Originated Two Years before Latest Fiscal Year 7 19  
Financing Receivable, Originated Three Years before Latest Fiscal Year 10 21  
Financing Receivable, Originated Four Years before Latest Fiscal Year 12 6  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 14 14  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (52) (97)  
Non-Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 1  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 8 8  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (11) (9)  
Non-Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 44  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 1  
Financing Receivable, Originated Three Years before Latest Fiscal Year 1 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2 1  
Financing Receivable, Revolving 0 68  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (3) (114)  
Non-Accrual [Member] | Commercial Investor Real Estate Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income 0 0  
Commercial Portfolio Segment [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 12,791 13,952  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 6,591 7,526  
Financing Receivable, Originated Two Years before Latest Fiscal Year 4,738 5,112  
Financing Receivable, Originated Three Years before Latest Fiscal Year 2,756 3,208  
Financing Receivable, Originated Four Years before Latest Fiscal Year 2,111 1,665  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 3,533 3,489  
Financing Receivable, Revolving 16,856 13,665  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (67) (42)  
Loans, net of unearned income (49,309) (48,575) (45,839)
Total Investor Real Estate [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1,993 1,992  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,332 2,116  
Financing Receivable, Originated Two Years before Latest Fiscal Year 1,647 1,568  
Financing Receivable, Originated Three Years before Latest Fiscal Year 715 268  
Financing Receivable, Originated Four Years before Latest Fiscal Year 161 67  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 107 180  
Financing Receivable, Revolving 1,087 1,088  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (15) (16)  
Loans, net of unearned income (7,027) (7,263) (6,557)
Consumer Portfolio Segment [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 7,774 7,588  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 7,515 3,680  
Financing Receivable, Originated Two Years before Latest Fiscal Year 2,743 2,510  
Financing Receivable, Originated Three Years before Latest Fiscal Year 1,679 2,142  
Financing Receivable, Originated Four Years before Latest Fiscal Year 1,377 2,180  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 4,932 5,016  
Financing Receivable, Revolving 5,070 5,904  
Financing Receivable, Revolving Converted to Amortizing 85 76  
Financing Receivable, Unallocated [1] (273) (332)  
Loans, net of unearned income (31,448) (29,428) $ (30,567)
FICO Scores, Above 720 [Member] | Residential First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 4,020 5,564  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 5,280 1,738  
Financing Receivable, Originated Two Years before Latest Fiscal Year 1,106 809  
Financing Receivable, Originated Three Years before Latest Fiscal Year 426 1,023  
Financing Receivable, Originated Four Years before Latest Fiscal Year 612 1,279  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2,601 2,709  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (14,045) (13,122)  
FICO Scores, Above 720 [Member] | Home Equity Lines of Credit [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 2,761 3,334  
Financing Receivable, Revolving Converted to Amortizing 49 45  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (2,810) (3,379)  
FICO Scores, Above 720 [Member] | Home Equity Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 544 417  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 320 251  
Financing Receivable, Originated Two Years before Latest Fiscal Year 155 233  
Financing Receivable, Originated Three Years before Latest Fiscal Year 144 325  
Financing Receivable, Originated Four Years before Latest Fiscal Year 217 304  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 588 580  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (1,968) (2,110)  
FICO Scores, Above 720 [Member] | Consumer Credit Card Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 675 667  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (675) (667)  
FICO Scores, Above 720 [Member] | Other consumer- exit portfolios      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 256  
Financing Receivable, Originated Two Years before Latest Fiscal Year 157 555  
Financing Receivable, Originated Three Years before Latest Fiscal Year 318 258  
Financing Receivable, Originated Four Years before Latest Fiscal Year 135 152  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 81 71  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (691) (1,292)  
FICO Scores, Above 720 [Member] | Other Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 1,555 506  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 844 646  
Financing Receivable, Originated Two Years before Latest Fiscal Year 543 226  
Financing Receivable, Originated Three Years before Latest Fiscal Year 222 47  
Financing Receivable, Originated Four Years before Latest Fiscal Year 66 7  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 76 3  
Financing Receivable, Revolving 116 117  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (3,422) (1,552)  
FICO Scores, 681-720 [Member] | Residential First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 449 525  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 366 189  
Financing Receivable, Originated Two Years before Latest Fiscal Year 108 103  
Financing Receivable, Originated Three Years before Latest Fiscal Year 57 112  
Financing Receivable, Originated Four Years before Latest Fiscal Year 69 113  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 353 360  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (1,402) (1,402)  
FICO Scores, 681-720 [Member] | Home Equity Lines of Credit [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 380 492  
Financing Receivable, Revolving Converted to Amortizing 12 10  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (392) (502)  
FICO Scores, 681-720 [Member] | Home Equity Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 82 57  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 35 40  
Financing Receivable, Originated Two Years before Latest Fiscal Year 26 35  
Financing Receivable, Originated Three Years before Latest Fiscal Year 22 39  
Financing Receivable, Originated Four Years before Latest Fiscal Year 23 37  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 71 76  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (259) (284)  
FICO Scores, 681-720 [Member] | Consumer Credit Card Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 240 255  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (240) (255)  
FICO Scores, 681-720 [Member] | Other consumer- exit portfolios      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 79  
Financing Receivable, Originated Two Years before Latest Fiscal Year 47 127  
Financing Receivable, Originated Three Years before Latest Fiscal Year 71 57  
Financing Receivable, Originated Four Years before Latest Fiscal Year 32 34  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 20 17  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (170) (314)  
FICO Scores, 681-720 [Member] | Other Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 381 100  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 203 143  
Financing Receivable, Originated Two Years before Latest Fiscal Year 131 59  
Financing Receivable, Originated Three Years before Latest Fiscal Year 58 11  
Financing Receivable, Originated Four Years before Latest Fiscal Year 19 1  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 18 1  
Financing Receivable, Revolving 56 52  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (866) (367)  
FICO Scores, 620-680 [Member] | Residential First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 246 211  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 161 100  
Financing Receivable, Originated Two Years before Latest Fiscal Year 78 73  
Financing Receivable, Originated Three Years before Latest Fiscal Year 50 64  
Financing Receivable, Originated Four Years before Latest Fiscal Year 44 67  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 378 404  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (957) (919)  
FICO Scores, 620-680 [Member] | Home Equity Lines of Credit [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 254 319  
Financing Receivable, Revolving Converted to Amortizing 11 11  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (265) (330)  
FICO Scores, 620-680 [Member] | Home Equity Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 34 21  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 14 17  
Financing Receivable, Originated Two Years before Latest Fiscal Year 13 19  
Financing Receivable, Originated Three Years before Latest Fiscal Year 12 22  
Financing Receivable, Originated Four Years before Latest Fiscal Year 15 25  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 59 65  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (147) (169)  
FICO Scores, 620-680 [Member] | Consumer Credit Card Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 194 208  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (194) (208)  
FICO Scores, 620-680 [Member] | Other consumer- exit portfolios      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 46  
Financing Receivable, Originated Two Years before Latest Fiscal Year 28 92  
Financing Receivable, Originated Three Years before Latest Fiscal Year 50 47  
Financing Receivable, Originated Four Years before Latest Fiscal Year 24 30  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 17 15  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (119) (230)  
FICO Scores, 620-680 [Member] | Other Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 232 43  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 125 59  
Financing Receivable, Originated Two Years before Latest Fiscal Year 72 28  
Financing Receivable, Originated Three Years before Latest Fiscal Year 37 7  
Financing Receivable, Originated Four Years before Latest Fiscal Year 15 1  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 13 0  
Financing Receivable, Revolving 40 42  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (534) (180)  
FICO Scores, Below 620 [Member] | Residential First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 39 31  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 58 44  
Financing Receivable, Originated Two Years before Latest Fiscal Year 49 50  
Financing Receivable, Originated Three Years before Latest Fiscal Year 47 51  
Financing Receivable, Originated Four Years before Latest Fiscal Year 47 60  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 451 499  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (691) (735)  
FICO Scores, Below 620 [Member] | Home Equity Lines of Credit [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 132 181  
Financing Receivable, Revolving Converted to Amortizing 8 7  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (140) (188)  
FICO Scores, Below 620 [Member] | Home Equity Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 6 2  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 3 7  
Financing Receivable, Originated Two Years before Latest Fiscal Year 6 9  
Financing Receivable, Originated Three Years before Latest Fiscal Year 7 13  
Financing Receivable, Originated Four Years before Latest Fiscal Year 11 15  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 46 52  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (79) (98)  
FICO Scores, Below 620 [Member] | Consumer Credit Card Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 81 91  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (81) (91)  
FICO Scores, Below 620 [Member] | Other consumer- exit portfolios      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 16  
Financing Receivable, Originated Two Years before Latest Fiscal Year 10 58  
Financing Receivable, Originated Three Years before Latest Fiscal Year 31 35  
Financing Receivable, Originated Four Years before Latest Fiscal Year 16 29  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 13 16  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (70) (154)  
FICO Scores, Below 620 [Member] | Other Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 66 12  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 50 20  
Financing Receivable, Originated Two Years before Latest Fiscal Year 33 12  
Financing Receivable, Originated Three Years before Latest Fiscal Year 20 3  
Financing Receivable, Originated Four Years before Latest Fiscal Year 8 1  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 7 0  
Financing Receivable, Revolving 17 19  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 0 0  
Loans, net of unearned income (201) (67)  
FICO Scores, Data not available [Member] [Member] | Residential First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 56 52  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 46 23  
Financing Receivable, Originated Two Years before Latest Fiscal Year 20 13  
Financing Receivable, Originated Three Years before Latest Fiscal Year 7 16  
Financing Receivable, Originated Four Years before Latest Fiscal Year 11 15  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 111 126  
Financing Receivable, Revolving 9 10  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (157) (142)  
Loans, net of unearned income (417) (397)  
FICO Scores, Data not available [Member] [Member] | Home Equity Lines of Credit [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 105 107  
Financing Receivable, Revolving Converted to Amortizing 5 3  
Financing Receivable, Unallocated [1] (27) (30)  
Loans, net of unearned income (137) (140)  
FICO Scores, Data not available [Member] [Member] | Home Equity Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 2 1  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 3 2  
Financing Receivable, Originated Two Years before Latest Fiscal Year 3 2  
Financing Receivable, Originated Three Years before Latest Fiscal Year 4 4  
Financing Receivable, Originated Four Years before Latest Fiscal Year 5 5  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 22 17  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (18) (21)  
Loans, net of unearned income (57) (52)  
FICO Scores, Data not available [Member] [Member] | Consumer Credit Card Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 0  
Financing Receivable, Originated Two Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Three Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 0 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0 0  
Financing Receivable, Revolving 8 7  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] 14 15  
Loans, net of unearned income (6) (8)  
FICO Scores, Data not available [Member] [Member] | Other consumer- exit portfolios      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 0 0  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0 3  
Financing Receivable, Originated Two Years before Latest Fiscal Year 2 6  
Financing Receivable, Originated Three Years before Latest Fiscal Year 5 8  
Financing Receivable, Originated Four Years before Latest Fiscal Year 4 5  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 3 4  
Financing Receivable, Revolving 0 0  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (7) (19)  
Loans, net of unearned income (21) (45)  
FICO Scores, Data not available [Member] [Member] | Other Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Financing Receivable, Originated in Current Fiscal Year 62 46  
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 7 1  
Financing Receivable, Originated Two Years before Latest Fiscal Year 156 1  
Financing Receivable, Originated Three Years before Latest Fiscal Year 91 0  
Financing Receivable, Originated Four Years before Latest Fiscal Year 4 0  
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 4 1  
Financing Receivable, Revolving 2 3  
Financing Receivable, Revolving Converted to Amortizing 0 0  
Financing Receivable, Unallocated [1] (78) (135)  
Loans, net of unearned income $ (404) $ (187)  
[1] These amounts consist of fees that are not allocated at the loan level and loans serviced by third parties wherein Regions does not receive FICO or vintage information.
[2] Loans are presented net of unearned income, unamortized discounts and premiums and deferred loan fees and costs of $630 million and $678 million at December 31, 2021 and 2020, respectively.
[3] Commercial and industrial lending includes PPP lending in the 2021 and 2020 vintage years