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Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Senior secured debt $ 21,875 $ 18,288
Debt issuance costs and discounts (248) (236)
Total debt (average life of 8.9 years, rates averaging 4.6%) 34,579 31,004
Less amounts due within one year 237 209
Long-term debt 34,342 30,795
Senior Secured Asset-Based Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term line of credit 2,780 0
Senior Secured Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term line of credit 0 0
Senior Secured Term Loan Facilities [Member]    
Debt Instrument [Line Items]    
Senior secured debt 1,960 3,671
Senior Secured Notes [Member]    
Debt Instrument [Line Items]    
Senior secured debt 16,200 13,850
Other Senior Secured Debt [Member]    
Debt Instrument [Line Items]    
Other senior secured debt 935 767
Senior Unsecured Notes [Member]    
Debt Instrument [Line Items]    
Senior unsecured notes $ 12,952 $ 12,952