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Stockholders' Equity - Other Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Before Tax |  |  |
Net unrealized gains (losses) on securities available for sale | $ 1,183 | $ (10,516) | $ (2,486)
Net unrealized gains (losses) on hedging relationships | 906 | (3,032) | (1,640)
Foreign currency translation adjustments | 6 | 98 | 17
Other | 8 | (24) | 4
Other comprehensive income (loss) | 2,103 | (13,474) | (4,105)
Provision (Benefit) |  |  |
Net unrealized gains (losses) on securities available for sale | 276 | (2,543) | (597)
Net unrealized gains (losses) on hedging relationships | 217 | (732) | (396)
Foreign currency translation adjustments | (40) | 97 | 7
Other | 2 | (6) | 1
Other comprehensive income (loss) | 455 | (3,184) | (985)
After Tax |  |  |
Net unrealized gains (losses) on securities available for sale | 907 | (7,973) | (1,889)
Net unrealized gains (losses) on hedging relationships | 689 | (2,300) | (1,244)
Foreign currency translation adjustments | 46 | 1 | 10
Other | 6 | (18) | 3
Other comprehensive income (loss), net of tax | $ 1,648 | $ (10,290) | $ (3,120)

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