v3.20.4
Condensed Financial Information Parent Company Statements of Cash Flow (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating activities:      
Net income $ 1,094 $ 1,582 $ 1,759
Adjustments to reconcile net income to net cash from operating activities:      
Depreciation, amortization and accretion, net 421 426 462
Loss on early extinguishment of debt 22 16 0
Net change in operating assets and liabilities:      
Other assets (246) (347) 171
Other liabilities 459 453 (470)
Other 103 177 37
Net cash from operating activities 2,324 2,581 2,275
Investing activities:      
Proceeds from sales and maturities of debt securities available for sale 4,921 3,532 3,383
Purchases of debt securities available for sale (8,956) (8,102) (3,410)
Proceeds from disposition of a business, net of cash transferred 0 0 357
Net cash from investing activities (4,853) 509 (3,045)
Financing activities:      
Net change in short-term borrowings (2,050) 450 1,100
Proceeds from long-term borrowings 4,698 21,274 21,750
Payments on long-term borrowings (10,918) (25,926) (17,451)
Cash dividends on common stock (595) (577) (452)
Cash dividends on preferred stock (103) (79) (64)
Proceeds from Issuance of Preferred Stock and Preference Stock 346 490  
Repurchases of common stock 0 (1,101) (2,122)
Other (3) 0 (1)
Net cash from financing activities 16,371 (2,514) 327
Parent Company [Member]      
Operating activities:      
Net income 1,094 1,582 1,759
Adjustments to reconcile net income to net cash from operating activities:      
Equity In Undistributed Earnings Of Subsidiaries (949) (124) 441
Provision for deferred income taxes 29 20 8
Depreciation, amortization and accretion, net 3 4 3
Loss on sale of assets 1 0 0
Loss on early extinguishment of debt 14 16 0
Discontinued Operation, (Gain) Loss from Disposal of Discontinued Operation, before Income Tax 0 0 (281)
Net change in operating assets and liabilities:      
Other assets 3 18 (35)
Other liabilities 0 (7) (8)
Other 44 102 23
Net cash from operating activities 239 1,611 1,910
Investing activities:      
(Investment in) / repayment of investment in subsidiaries 0 (18) 146
Proceeds from sales and maturities of debt securities available for sale 4 5 8
Purchases of debt securities available for sale (4) (6) (10)
Proceeds from disposition of a business, net of cash transferred 0 0 357
Net cash from investing activities 0 (19) 501
Financing activities:      
Net change in short-term borrowings 0 0 (101)
Proceeds from long-term borrowings 748 500 500
Payments on long-term borrowings 1,039 751 0
Cash dividends on common stock (595) (577) (452)
Cash dividends on preferred stock (103) (79) (64)
Proceeds from Issuance of Preferred Stock and Preference Stock 346 490 0
Repurchases of common stock 0 (1,101) (2,122)
Other (5) (2) (2)
Net cash from financing activities (648) (1,520) (2,241)
Net change in cash and cash equivalents (409) 72 170
Cash and cash equivalents at beginning of year 1,935 1,863 1,693
Cash and cash equivalents at end of year $ 1,526 $ 1,935 $ 1,863