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Fair Value Measurement - Schedule of Net Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Carrying Amount
Financial Assets [Abstract]
Investments in debt securities	$ 1,527	$ 1,424
Financial Liabilities [Abstract]
Total debt, excluding finance leases	17,311	17,808
Carrying Amount | Commodity Contract
Financial Assets [Abstract]
Commodity derivatives	183	345
Financial Liabilities [Abstract]
Commodity derivatives	84	225
Estimate of Fair Value Measurement
Financial Assets [Abstract]
Investments in debt securities	1,527	1,424
Financial Liabilities [Abstract]
Total debt, excluding finance leases	18,085	18,621
Estimate of Fair Value Measurement | Commodity Contract
Financial Assets [Abstract]
Commodity derivatives	183	345
Financial Liabilities [Abstract]
Commodity derivatives	$ 84	$ 225

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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