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Fair Value Measurements - Schedule of Carrying Values and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Equity investments without readily determinable fair values, carrying amount $ 170 $ 170
Equity investments without readily determinable fair values, fair value 0 0
Insurance contracts in nonqualified trusts, carrying amount 18 21
Insurance contracts in nonqualified trusts, fair value 18 21
Long-term debt, including current installments of long-term debt, carrying amount 13,435 13,400
Long-term debt, including current installments of long-term debt, fair value 13,612 13,662
Fair Value, Inputs, Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Equity investments without readily determinable fair values, fair value 0 0
Insurance contracts in nonqualified trusts, fair value 18 21
Long-term debt, including current installments of long-term debt, fair value 13,472 13,514
Unobservable Inputs (Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Equity investments without readily determinable fair values, fair value 0 0
Insurance contracts in nonqualified trusts, fair value 0 0
Long-term debt, including current installments of long-term debt, fair value $ 140 $ 148