Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Oct. 31, 2023	Jan. 31, 2023	Dec. 31, 2022
SHORT-TERM DEBT
Short-term debt	$ 446			$ 1,159
LONG-TERM DEBT
Senior notes, net of unamortized discounts and debt issuance costs	7,242			7,237
Noncurrent portion of other long-term debt	63			50
Total long-term debt	7,305			7,287
Total debt	7,751			8,446
Senior notes
LONG-TERM DEBT
Unamortized discounts and debt issuance costs	(41)			(46)
Senior notes, net of unamortized discounts and debt issuance costs	7,242			7,237
Debt instrument face value	7,300			8,400
Senior notes | Level 2
LONG-TERM DEBT
Debt instrument fair value	$ 6,900			7,600
Senior notes | 2.85% senior notes due January 2023
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)			2.85%
Senior notes | 3.85% senior notes due October 2023
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)		3.85%
Senior notes | 3.60% senior notes due November 2024
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	3.60%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 750			750
Senior notes | 4.65% senior notes due October 2025
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	4.65%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 1,000			1,000
Senior notes | 4.50% senior notes due December 2026
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	4.50%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 750			750
Senior notes | 3.55% senior notes due December 2029
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	3.55%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 1,000			1,000
Senior notes | 3.80% senior notes due September 2030
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	3.80%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 750			750
Senior notes | 6.70% senior notes due May 2036
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	6.70%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 250			250
Senior notes | 6.65% senior notes due January 2037
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	6.65%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 600			600
Senior notes | 5.15% senior notes due June 2042
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	5.15%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 499			499
Senior notes | 4.30% senior notes due January 2043
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	4.30%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 348			348
Senior notes | 4.70% senior notes due June 2044
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	4.70%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 687			687
Senior notes | 4.90% senior notes due February 2045
SHORT-TERM DEBT
Debt instrument, interest rate (as a percent)	4.90%
LONG-TERM DEBT
Long-term debt, before deducting unamortized discounts and debt issuance costs	$ 649			649
Other long-term debt
LONG-TERM DEBT
Noncurrent portion of other long-term debt	63			50
Line of Credit | Commercial paper notes
SHORT-TERM DEBT
Short-term notes and borrowings	$ 433
Weighted average interest rate, short-term (as a percent)	5.80%
Senior notes | 2.85% senior notes due January 2023
SHORT-TERM DEBT
Short-term notes and borrowings				$ 400
Debt instrument, interest rate (as a percent)				2.85%
Senior notes | 3.85% senior notes due October 2023
SHORT-TERM DEBT
Short-term notes and borrowings				$ 700
Debt instrument, interest rate (as a percent)				3.85%
Other
SHORT-TERM DEBT
Short-term debt	$ 13			$ 59