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v3.25.1

Investment Securities (Summary Of Investment Securities In Unrealized Loss Positions) (Details) | Mar. 31, 2025 USD ($) security | Dec. 31, 2024 USD ($) security
--- | --- | ---
Schedule of Investments [Line Items] |  |  |
Less than 12 months, Fair Value |  | $ 99,000,000 | $ 452,000,000
Less than 12 Months, Unrealized Losses |  | 0 | 0
12 months or more, Fair Value |  | 13,823,000,000 | 13,777,000,000
12 Months or more, Unrealized Losses |  | 2,544,000,000 | 2,874,000,000
Total, Fair Value |  | 13,922,000,000 | 14,229,000,000
Total, Unrealized Losses |  | $ 2,544,000,000 | $ 2,874,000,000
Securities with no credit impairment in unrealized loss position |  | 1,148 | 1,172
U.S. Treasury securities |  |  |
Schedule of Investments [Line Items] |  |  |
Less than 12 months, Fair Value |  | $ 98,000,000 | $ 438,000,000
Less than 12 Months, Unrealized Losses |  | 0 | 0
12 months or more, Fair Value |  | 24,000,000 | 25,000,000
12 Months or more, Unrealized Losses |  | 0 | 1,000,000
Total, Fair Value |  | 122,000,000 | 463,000,000
Total, Unrealized Losses |  | $ 0 | $ 1,000,000
Securities with no credit impairment in unrealized loss position | security |  | 3 | 7
Residential mortgage-backed securities |  |  |
Schedule of Investments [Line Items] |  |  |
Less than 12 months, Fair Value | [1] | $ 1,000,000 | $ 0
Less than 12 Months, Unrealized Losses | [1] | 0 | 0
12 months or more, Fair Value | [1] | 9,020,000,000 | 9,074,000,000
12 Months or more, Unrealized Losses | [1] | 2,087,000,000 | 2,304,000,000
Total, Fair Value | [1] | 9,021,000,000 | 9,074,000,000
Total, Unrealized Losses | [1] | $ 2,087,000,000 | $ 2,304,000,000
Securities with no credit impairment in unrealized loss position | security | [1] | 896 | 913
Commercial mortgage-backed securities |  |  |
Schedule of Investments [Line Items] |  |  |
Less than 12 months, Fair Value | [1] | $ 0 | $ 14,000,000
Less than 12 Months, Unrealized Losses | [1] | 0 | 0
12 months or more, Fair Value | [1] | 4,779,000,000 | 4,678,000,000
12 Months or more, Unrealized Losses | [1] | 457,000,000 | 569,000,000
Total, Fair Value | [1] | 4,779,000,000 | 4,692,000,000
Total, Unrealized Losses | [1] | $ 457,000,000 | $ 569,000,000
Securities with no credit impairment in unrealized loss position | security | [1] | 249 | 252
[1] | Issued and/or guaranteed by U.S. government agencies or U.S. government-sponsored enterprises.

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