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Investment Securities - Schedule Of Investments Within The Available For Sale Portfolio That Had Unrealized Losses (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Unrealized Losses |  |
Fair value, less than 12 months | $ 4,554 | $ 4,936
Unrealized losses, less than 12 months | (487) | (90)
Fair value, 12 months or longer | 4,037 | 522
Unrealized loss, 12 months or longer | (801) | (22)
Fair value, total | 8,591 | 5,458
Unrealized losses, total | (1,288) | (112)
Government agency issued MBS |  |
Unrealized Losses |  |
Fair value, less than 12 months | 2,314 | 2,973
Unrealized losses, less than 12 months | (249) | (41)
Fair value, 12 months or longer | 2,350 | 184
Unrealized loss, 12 months or longer | (446) | (8)
Fair value, total | 4,664 | 3,157
Unrealized losses, total | (695) | (49)
Government agency issued CMO |  |
Unrealized Losses |  |
Fair value, less than 12 months | 1,104 | 1,436
Unrealized losses, less than 12 months | (123) | (37)
Fair value, 12 months or longer | 1,209 | 248
Unrealized loss, 12 months or longer | (246) | (10)
Fair value, total | 2,313 | 1,684
Unrealized losses, total | (369) | (47)
Other U.S. government agencies |  |
Unrealized Losses |  |
Fair value, less than 12 months | 643 | 459
Unrealized losses, less than 12 months | (67) | (11)
Fair value, 12 months or longer | 424 | 90
Unrealized loss, 12 months or longer | (95) | (4)
Fair value, total | 1,067 | 549
Unrealized losses, total | (162) | (15)
States and municipalities |  |
Unrealized Losses |  |
Fair value, less than 12 months | 493 | 68
Unrealized losses, less than 12 months | (48) | (1)
Fair value, 12 months or longer | 54 | 0
Unrealized loss, 12 months or longer | (14) | 0
Fair value, total | 547 | 68
Unrealized losses, total | $ (62) | $ (1)

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