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Investments, Equity Method and Joint Ventures (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2022
Jun. 30, 2020
Aug. 31, 2022
Dec. 31, 2021
Feb. 10, 2017
Schedule of Equity Method Investments [Line Items]          
Equity Securities without Readily Determinable Fair Value, Amount $ 400     $ 900  
Operating Segments | Argo AI | Company excluding Ford Credit          
Schedule of Equity Method Investments [Line Items]          
Committed Capital         $ 1,000
Equity Method Investment, Committed Capital, Expected Timing of Satisfaction, Period         5 years
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Sale of Interest by Parent   $ 500      
Equity Method Investment, Realized Gain (Loss) on Disposal   3,500      
Equity Method Investments, Fair Value Disclosure 64 2,400      
Equity Securities without Readily Determinable Fair Value, Amount   $ 400 $ 1,000    
Equity Method Investment, Other than Temporary Impairment $ 2,700        
Equity Securities without Readily Determinable Fair Value, Amount     $ 500