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Income Taxes - Deferred income tax assets and liabilities related to vehicle programs (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred income tax assets: |  |
Other | $ 100 | $ 110
Deferred income tax assets | 2,358 | 1,974
Deferred income tax liabilities: |  |
Other | 4 | 14
Deferred income tax liabilities under vehicle programs, net | 743 | 776
Vehicle Programs |  |
Deferred income tax assets: |  |
Depreciation and amortization | 80 | 62
Deferred income tax liabilities: |  |
Depreciation and amortization | 2,321 | 1,445
Other assets |  |
Deferred income tax assets: |  |
Other | 19 | 27
Assets |  |
Deferred income tax assets: |  |
Deferred income tax assets | 99 | 89
Other |  |
Deferred income tax liabilities: |  |
Other | 20 | 27
Liability |  |
Deferred income tax liabilities: |  |
Deferred income tax liabilities | 2,341 | 1,472
Vehicle Programs, Net |  |
Deferred income tax liabilities: |  |
Deferred income tax liabilities under vehicle programs, net | $ 2,242 | $ 1,383

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