XML 67 R52.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Fair Values of Financial Instruments - Schedule of Carrying Amounts and Estimated Fair Values (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Carrying Amount    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, including current maturities $ (17,183) $ (17,179)
Fair Value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, including current maturities $ (16,053) $ (16,631)