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Debt, Credit Facilities and Commitments and Contingencies - Long-Term Debt - Additional Information (Details) - USD ($) $ in Millions		1 Months Ended		2 Months Ended	3 Months Ended	12 Months Ended
	Feb. 12, 2024	Mar. 31, 2023	Jan. 31, 2023	Feb. 17, 2023	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023
Long-term debt
Aggregate principal amount outstanding					$ 59,385	$ 63,270
Long-term debt obligations, gross					59,245
Senior notes \| Senior Notes 3.450 Percent Due 2022
Long-term debt
Borrowings (repayments) of long-term debt						$ 2,900
Stated interest rate (as a percent)						3.45%
Senior notes \| Senior Notes 3.25 Percent Due 2022
Long-term debt
Borrowings (repayments) of long-term debt						$ 1,700
Stated interest rate (as a percent)						3.25%
Senior notes \| 3.20% notes due 2022
Long-term debt
Borrowings (repayments) of long-term debt						$ 1,000
Stated interest rate (as a percent)						3.20%
Senior notes \| 2.90% notes due 2022
Long-term debt
Borrowings (repayments) of long-term debt						$ 3,100
Stated interest rate (as a percent)						2.90%
Senior notes \| Senior Notes 2.3 Percent Due 2022
Long-term debt
Borrowings (repayments) of long-term debt						$ 3,000
Stated interest rate (as a percent)						2.30%
Senior notes \| Floating rate notes due 2022
Long-term debt
Borrowings (repayments) of long-term debt						$ 750
Senior notes \| 2.80% notes due 2023
Long-term debt
Borrowings (repayments) of long-term debt		$ 350
Stated interest rate (as a percent)		2.80%
Senior notes \| 2.85% notes due 2023
Long-term debt
Stated interest rate (as a percent)							2.85%
Senior notes \| 1.50% notes due 2023 (€500 principal)
Long-term debt
Borrowings (repayments) of long-term debt					$ 500
Stated interest rate (as a percent)					1.50%
Senior notes \| 3.75% notes due 2023
Long-term debt
Borrowings (repayments) of long-term debt					$ 1,300
Stated interest rate (as a percent)					3.75%
Term loan facilities \| Floating Rate Term Loan Tranche Due May 2025 [Member]
Long-term debt
Borrowings (repayments) of long-term debt						2,000
Long-term debt obligations, gross						2,000
Term loan facilities \| Floating rate term loans due 2025
Long-term debt
Long-term debt obligations, gross						$ 2,000
Term loan facilities \| Floating rate notes due 2023
Long-term debt
Borrowings (repayments) of long-term debt				$ 1,000
Term loan facilities \| 2.85% notes due 2023
Long-term debt
Borrowings (repayments) of long-term debt			$ 1,000
Term loan facilities \| December 2023 Term Loan Credit Agreement \| Subsequent event
Long-term debt
Borrowings (repayments) of long-term debt	$ (5,000)