Income Taxes - Reconciliation of Income Tax Expense (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Amount | |||
| Expected U.S. federal income tax expense | $ 6,878,000,000 | $ 7,263,000,000 | $ 10,225,000,000 |
| Increase (decrease) in taxes resulting from: | |||
| State tax expense, net of federal benefit | 1,283,000,000 | 1,367,000,000 | 881,000,000 |
| Affordable housing/energy/other credits | (2,365,000,000) | (1,888,000,000) | (1,406,000,000) |
| Changes in prior-period UTBs, including interest | (613,000,000) | 144,000,000 | 133,000,000 |
| Tax-exempt income, including dividends | (433,000,000) | (413,000,000) | (672,000,000) |
| Stock-based compensation | (225,000,000) | (257,000,000) | (236,000,000) |
| Rate differential on non-U.S. earnings | 504,000,000 | 98,000,000 | (272,000,000) |
| Nondeductible expenses | 290,000,000 | 302,000,000 | 97,000,000 |
| Tax law changes | 0 | 0 | 2,281,000,000 |
| Other | 5,000,000 | (179,000,000) | (50,000,000) |
| Total income tax expense | $ 5,324,000,000 | $ 6,437,000,000 | $ 10,981,000,000 |
| Percent | |||
| Expected U.S. federal income tax expense | 21.00% | 21.00% | 35.00% |
| Increase (decrease) in taxes resulting from: | |||
| State tax expense, net of federal benefit | 3.90% | 4.00% | 3.00% |
| Affordable housing/energy/other credits | (7.20%) | (5.50%) | (4.80%) |
| Rate differential on non-U.S. earnings | (1.90%) | 0.40% | 0.50% |
| Changes in prior-period UTBs, including interest | (1.30%) | (1.20%) | (2.30%) |
| Tax-exempt income, including dividends | (0.70%) | (0.70%) | (0.80%) |
| Nondeductible expenses | 1.50% | 0.30% | (0.90%) |
| Stock-based compensation | 0.90% | 0.90% | 0.30% |
| Tax law changes | 0.00% | 0.00% | 7.80% |
| Other | 0.10% | (0.60%) | (0.20%) |
| Total income tax expense | 16.30% | 18.60% | 37.60% |
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Changes in Prior Period Unrealized Tax Benefits, Including Interest, Amount No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Changes in Prior Period Unrealized Tax Benefits, Including Interest, Percent No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Foreign Income Tax Law Changes, Amount No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Foreign Income Tax Law Changes, Percent No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Increase (Decrease) in Taxes, Amount [Abstract] No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Increase (Decrease) in Taxes, Percent [Abstract] No definition available.
|
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|