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Product Warranty and Related Liabilities - Product Warranty and Other Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Product Warranty and Related Liabilities [Roll Forward]    
Warranty balance at beginning of period $ 9,774 $ 8,242
Warranties issued and assumed in period – recall campaigns 132 120
Warranties issued and assumed in period – product warranty 461 443
Payments (1,077) (733)
Adjustments to pre-existing warranties (5) 11
Effect of foreign currency and other 17 (6)
Warranty balance at end of period 9,302 8,077
Less: Supplier recoveries balance at end of period 2,025 193
Warranty balance, net of supplier recoveries at end of period 7,277 7,884
Product warranty expense, net of recoveries    
Warranties issued and assumed in period 593 563
Supplier recoveries accrued in period (57) (72)
Adjustments and other 12 5
Warranty expense, net of supplier recoveries $ 548 $ 496