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Income Taxes (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2018 | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018
Income Taxes [Line Items] |  |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign |  | $ 4,300 |  |  |
Income/(Loss) before income taxes (in millions) |  |  |  |  |
Income/(Loss) before income taxes |  | 17,780 | $ (1,116) | $ (640) |
Current Federal Tax Expense (Benefit) |  | 102 | (23) | (101) |
Current |  |  |  |  |
Non-U.S. |  | 598 | 554 | 738 |
State and local |  | 26 | (45) | 33 |
Total current |  | 726 | 486 | 670 |
Deferred |  |  |  |  |
Federal |  | 2,290 | (523) | (1,190) |
Non-U.S. |  | (3,254) | 168 | (70) |
State and local |  | 108 | 29 | (134) |
Total deferred |  | (856) | (326) | (1,394) |
Provision for/(Benefit from) income taxes (Note 7) |  | $ (130) | $ 160 | $ (724) |
Reconciliation of effective tax rate |  |  |  |  |
U.S. statutory rate |  | 21.00% | 21.00% | 21.00% | 35.00%
Non-U.S. tax rates under U.S. rates |  | 1.30% | (2.60%) | 46.90% |
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent |  | 0.50% | 8.90% | 12.40% |
General business credits |  | (2.30%) | 35.10% | 67.00% |
Effective Income Tax Rate Reconciliation, Disposition of Business, Percent |  | (18.80%) | (0.40%) | 45.50% |
Effective Income Tax Rate Reconciliation Foreign Operations Taxed In United States |  | 2.40% | 27.00% | (49.20%) |
Prior year settlements and claims |  | (0.30%) | 8.30% | (5.00%) |
Effective Income Tax Rate Reconciliation, Export Incentives, Percent |  | (0.60%) | (6.00%) | 20.70% |
Enacted change in tax laws |  | 1.10% | 1.50% | (12.50%) |
Valuation allowances |  | (4.70%) | (108.80%) | (18.70%) |
Other |  | (0.30%) | 1.70% | (15.00%) |
Effective rate |  | (0.70%) | (14.30%) | 113.10% |
Future Effective Federal Income Tax Rate, Percent | 0.21 |  |  |  |
Tax Cuts and Jobs Act, Measurement Period Adjustment, Income Tax Expense (Benefit) |  |  |  | $ 95 |
Undistributed Foreign Earnings, Deferred Taxes Not Provided |  | $ 16,700 |  |  |
Deferred tax assets |  |  |  |  |
Employee benefit plans |  | 2,320 | $ 4,760 |  |
Deferred Tax Assets, Operating Loss Carryforwards |  | 4,163 | 1,584 |  |
Net operating loss carryforwards |  | 4,163 | 1,584 |  |
Tax credit carryforwards |  | 10,437 | 11,037 |  |
Research expenditures |  | 1,117 | 1,321 |  |
Dealer and dealers’ customer allowances and claims |  | 1,944 | 2,145 |  |
Other foreign deferred tax assets |  | 2,005 | 729 |  |
All other |  | 2,353 | 2,335 |  |
Total gross deferred tax assets |  | 24,339 | 23,911 |  |
Less: Valuation allowances |  | (1,067) | (1,981) |  |
Total net deferred tax assets |  | 23,272 | 21,930 |  |
Deferred tax liabilities |  |  |  |  |
Leasing transactions |  | 2,103 | 3,299 |  |
Depreciation and amortization (excluding leasing transactions) |  | 2,881 | 3,218 |  |
Finance receivables |  | 756 | 574 |  |
Deferred Tax Liabilities, Investments |  | 2,149 | 144 |  |
Other foreign deferred tax liabilities |  | 893 | 839 |  |
All other |  | 2,275 | 1,971 |  |
Total deferred tax liabilities |  | 11,057 | 10,045 |  |
Net deferred tax assets/(liabilities) |  | 23,272 | 21,930 |  |
Deferred Tax Assets, Valuation Allowance |  | 1,067 | 1,981 |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  | 918 |  |  |
Operating Loss Carryforwards |  | 11,400 |  |  |
Tax Credit Carryforwards |  | 10,400 |  |  |
Reconciliation of Unrecognized Tax Benefits [Roll Forward] |  |  |  |  |
Beginning balance |  | 1,913 | 1,943 |  |
Increase – tax positions in prior periods |  | 1,054 | 137 |  |
Increase – tax positions in current period |  | 25 | 25 |  |
Decrease – tax positions in prior periods |  | (54) | (131) |  |
Unrecognized Tax Benefits, Increase Resulting from Settlements with Taxing Authorities |  | 1 |  |  |
Settlements |  |  | (61) |  |
Lapse of statute of limitations |  | (7) | 0 |  |
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation |  | (22) | 0 |  |
Ending balance |  | 2,910 | 1,913 | 1,943 |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  | 2,900 | 1,900 |  |
Unrecognized Tax Benefits, Interest on Income Taxes Expense |  | 7 | (2) | (29) |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued |  | 32 | 36 |  |
Income Taxes Paid, Net |  | $ 568 | 421 | 599 |
Tax Credit Carryforward Remaining Carryforward Period |  | 5 years |  |  |
Deferred Tax Assets, Net |  | $ 12,215 | 11,885 |  |
Change in Deferred Tax Not Recognized, Undistributed Earnings of Foreign Subsidiaries, Due to Restructuring |  | 2,900 |  |  |
UNITED STATES |  |  |  |  |
Income/(Loss) before income taxes (in millions) |  |  |  |  |
Income/(Loss) before income taxes |  | 10,043 | (231) | 2,656 |
Non-US |  |  |  |  |
Income/(Loss) before income taxes (in millions) |  |  |  |  |
Income/(Loss) before income taxes |  | 7,737 | (885) | $ (3,296) |
Deferred tax liabilities |  |  |  |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  |  | $ (1,300) |  |
OperatingLossCarryforwardNotSubjectToExpiration [Member] |  |  |  |  |
Deferred tax liabilities |  |  |  |  |
Operating Loss Carryforwards |  | $ 3,200 |  |  |

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