v3.22.0.1
Condensed Financial Information Parent Company Statements of Cash Flow (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating activities:      
Net income $ 2,521 $ 1,094 $ 1,582
Adjustments to reconcile net income to net cash from operating activities:      
Depreciation, amortization and accretion, net 371 421 426
Loss on early extinguishment of debt 20 22 16
Net change in operating assets and liabilities:      
Other assets (231) (246) (347)
Other liabilities (76) 459 453
Other 66 103 177
Net cash from operating activities 3,030 2,324 2,581
Investing activities:      
Proceeds from sales and maturities of debt securities available for sale 5,848 4,921 3,532
Purchases of debt securities available for sale (8,360) (8,956) (8,102)
Net cash from investing activities (2,865) (4,853) 509
Financing activities:      
Proceeds from long-term borrowings 647 4,698 21,274
Payments on long-term borrowings (1,779) (10,918) (25,926)
Cash dividends on common stock (608) (595) (577)
Cash dividends on preferred stock (108) (103) (79)
Proceeds from Issuance of Preferred Stock and Preference Stock 390 346 490
Payments for Repurchase of Preferred Stock and Preference Stock 500 0 0
Repurchases of common stock (467) 0 (1,101)
Other 3 (3) 0
Net cash from financing activities 11,290 16,371 (2,514)
Parent Company [Member]      
Operating activities:      
Net income 2,521 1,094 1,582
Adjustments to reconcile net income to net cash from operating activities:      
Equity In Undistributed Earnings Of Subsidiaries (427) (949) (124)
Provision for deferred income taxes (21) 29 20
Depreciation, amortization and accretion, net 3 3 4
Loss on sale of assets 0 1 0
Loss on early extinguishment of debt 20 14 16
Net change in operating assets and liabilities:      
Other assets 61 3 18
Other liabilities 1 0 (7)
Other (51) 44 102
Net cash from operating activities 2,107 239 1,611
Investing activities:      
(Investment in) / repayment of investment in subsidiaries (21) 0 (18)
Proceeds from sales and maturities of debt securities available for sale 5 4 5
Purchases of debt securities available for sale (3) (4) (6)
Net cash from investing activities (19) 0 (19)
Financing activities:      
Proceeds from long-term borrowings 646 748 500
Payments on long-term borrowings 1,424 1,039 751
Cash dividends on common stock (608) (595) (577)
Cash dividends on preferred stock (108) (103) (79)
Proceeds from Issuance of Preferred Stock and Preference Stock 390 346 490
Payments for Repurchase of Preferred Stock and Preference Stock (500) 0 0
Repurchases of common stock (467) 0 (1,101)
Other 0 (5) (2)
Net cash from financing activities (2,071) (648) (1,520)
Net change in cash and cash equivalents 17 (409) 72
Cash and cash equivalents at beginning of year 1,526 1,935 1,863
Cash and cash equivalents at end of year $ 1,543 $ 1,526 $ 1,935