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Stockholders' Equity - Other Comprehensive Income (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Before Tax |  |  |  |
Net unrealized gains (losses) on securities available for sale | $ 292 | $ 358 | $ 1,902 | $ 742
Net unrealized gains (losses) on hedging relationships | 76 | 708 | 1,884 | 1,073
Foreign currency translation adjustments | 20 | 33 | (1) | 52
Net changes in securities held to maturity | 0 | 9 |  | 16
Other | 0 | (1) | 0 | (3)
Other comprehensive income (loss), before tax | 388 | 1,107 | 3,785 | 1,880
Provision (Benefit) |  |  |  |
Net unrealized gains (losses) on securities available for sale | 70 | 86 | 456 | 178
Net unrealized gains (losses) on hedging relationships | 19 | 171 | 453 | 259
Foreign currency translation adjustments | (3) | 18 | 43 | 7
Net changes in securities held to maturity | 0 | 3 | 0 | 4
Other | 0 | (1) | 0 | (1)
Other comprehensive income (loss), provision (benefit) | 86 | 277 | 952 | 447
After Tax |  |  |  |
Net unrealized gains (losses) on securities available for sale | 222 | 272 | 1,446 | 564
Net unrealized gains (losses) on hedging relationships | 57 | 537 | 1,431 | 814
Foreign currency translation adjustments | 23 | 15 | (44) | 45
Net changes in securities held to maturity | 0 | 6 | 0 | 12
Other | 0 | 0 | 0 | (2)
Other comprehensive income, net of tax | $ 302 | $ 830 | $ 2,833 | $ 1,433

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