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Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred Tax Assets, Net [Abstract] |  |
Allowance for loan and lease losses | $ 1,288 | $ 661
Allowance for unfunded commitments | 141 | 78
Compensation and benefits | 227 | 270
Partnership investments | 121 | 120
Loss and credit carryforward | 162 | 203
Accrued expenses | 107 | 117
Lease obligations | 528 | 545
Other | 163 | 161
Total gross deferred tax assets | 2,737 | 2,155
Valuation allowance | (26) | (31)
Total deferred tax assets | 2,711 | 2,124
Deferred Tax Liabilities, Gross [Abstract] |  |
Leasing | 1,179 | 1,183
Right of Use Assets | 476 | 520
Goodwill and intangibles | 193 | 194
Fixed assets | 592 | 412
Net unrealized gains on securities and financial instruments | 929 | 370
Other | 143 | 306
Total deferred tax liabilities | 3,512 | 2,985
Net deferred tax liability | $ 801 | $ 861

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