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v3.23.2

Investment Securities (Summary Of Investment Securities In Unrealized Loss Positions) (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule of Investments [Line Items] |  |
Less than 12 months, Fair Value | $ 3,075 | $ 8,504
Less than 12 Months, Unrealized Losses | 246 | 771
12 months or more, Fair Value | 14,340 | 10,506
12 Months or more, Unrealized Losses | 2,690 | 2,262
Total, Fair Value | 17,415 | 19,010
Total, Unrealized Losses | 2,936 | 3,033
U.S. Treasury securities |  |
Schedule of Investments [Line Items] |  |
Less than 12 months, Fair Value | 0 | 996
Less than 12 Months, Unrealized Losses | 0 | 5
12 months or more, Fair Value | 1,672 | 1,668
12 Months or more, Unrealized Losses | 123 | 141
Total, Fair Value | 1,672 | 2,664
Total, Unrealized Losses | 123 | 146
Residential mortgage-backed securities |  |
Schedule of Investments [Line Items] |  |
Less than 12 months, Fair Value | 537 | 3,500
Less than 12 Months, Unrealized Losses | 41 | 361
12 months or more, Fair Value | 10,525 | 8,153
12 Months or more, Unrealized Losses | 2,201 | 1,967
Total, Fair Value | 11,062 | 11,653
Total, Unrealized Losses | 2,242 | 2,328
Commercial mortgage-backed securities |  |
Schedule of Investments [Line Items] |  |
Less than 12 months, Fair Value | 2,538 | 4,008
Less than 12 Months, Unrealized Losses | 205 | 405
12 months or more, Fair Value | 2,143 | 685
12 Months or more, Unrealized Losses | 366 | 154
Total, Fair Value | 4,681 | 4,693
Total, Unrealized Losses | $ 571 | $ 559

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