Fair Value Measurement - Fair Value Hierarchy for Gross Financial Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity derivatives	$ 724	$ 2,037
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in debt securities	1,424	1,222
Commodity derivatives	724	2,037
Total assets	2,148	3,259
Commodity derivatives	647	2,010
Contingent consideration	312	0
Total liabilities	959	2,010
Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in debt securities	278	178
Commodity derivatives	308	958
Total assets	586	1,136
Commodity derivatives	350	906
Contingent consideration	0	0
Total liabilities	350	906
Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in debt securities	1,146	1,044
Commodity derivatives	301	951
Total assets	1,447	1,995
Commodity derivatives	283	843
Contingent consideration	0	0
Total liabilities	283	843
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in debt securities	0	0
Commodity derivatives	115	128
Total assets	115	128
Commodity derivatives	14	261
Contingent consideration	312	0
Total liabilities	$ 326	$ 261