Fair Value Measurements and Fair Value of Financial Instruments - Schedule of Carrying Value and Fair Value of the Company's Debt Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value	$ 34,727	$ 34,278
Fair value	32,268	30,290
Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value	34,650	33,889
Fair value	32,191	29,901
Commercial Paper Programs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value	0	310
Fair value	0	310
Other Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value	77	79
Fair value	$ 77	$ 79