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Investment Securities - Maturities of Securities Available for Sale and Held to Maturity (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Available for sale securities, fair value |  |
Within 1 year | $ 6,465 |
After 1 year through 5 years | 16,186 |
After 5 years through 10 years | 15,710 |
After 10 years | 23,947 |
Total | 62,308 | $ 82,994
Available for sale securities, amortized cost |  |
Within 1 year | 6,543 |
After 1 year through 5 years | 17,192 |
After 5 years through 10 years | 16,981 |
After 10 years | 25,974 |
Amortized Cost | 66,690 |
Held to maturity securities, fair value |  |
Within 1 year | 588 |
After 1 year through 5 years | 19,789 |
After 5 years through 10 years | 26,519 |
After 10 years | 81,363 |
Total | 128,259 | 132,605
Held to maturity securities, amortized cost |  |
Within 1 year | 592 |
After 1 year through 5 years | 20,357 |
After 5 years through 10 years | 27,439 |
After 10 years | 88,305 |
Amortized Cost | 136,693 |
Portfolio layer method fair value hedge basis adjustments, excluded from amortized cost of available for sale securities | 8 |
U.S. agency mortgage-backed securities |  |
Available for sale securities, fair value |  |
Within 1 year | 1,433 |
After 1 year through 5 years | 7,445 |
After 5 years through 10 years | 14,476 |
After 10 years | 21,102 |
Total | 44,456 | 51,833
Held to maturity securities, fair value |  |
Within 1 year | 588 |
After 1 year through 5 years | 19,789 |
After 5 years through 10 years | 26,519 |
After 10 years | 81,363 |
Total | 128,259 | 132,605
U.S. Treasury securities |  |
Available for sale securities, fair value |  |
Within 1 year | 4,021 |
After 1 year through 5 years | 3,765 |
After 5 years through 10 years | 0 |
After 10 years | 0 |
Total | 7,786 | 14,469
Corporate debt securities |  |
Available for sale securities, fair value |  |
Within 1 year | 877 |
After 1 year through 5 years | 3,744 |
After 5 years through 10 years | 470 |
After 10 years | 0 |
Total | 5,091 | 9,579
Asset-backed securities |  |
Available for sale securities, fair value |  |
Within 1 year | 132 |
After 1 year through 5 years | 1,001 |
After 5 years through 10 years | 446 |
After 10 years | 2,702 |
Total | 4,281 | 5,910
U.S. state and municipal securities |  |
Available for sale securities, fair value |  |
Within 1 year | 2 |
After 1 year through 5 years | 231 |
After 5 years through 10 years | 318 |
After 10 years | 11 |
Total | 562 | 549
Non-agency commercial mortgage-backed securities |  |
Available for sale securities, fair value |  |
Within 1 year | 0 |
After 1 year through 5 years | 0 |
After 5 years through 10 years | 0 |
After 10 years | 113 |
Total | 113 | 109
Other |  |
Available for sale securities, fair value |  |
Within 1 year | 0 |
After 1 year through 5 years | 0 |
After 5 years through 10 years | 0 |
After 10 years | 19 |
Total | $ 19 | $ 18

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