Debt - Schedule of Short-term and Long-term Debt Outstanding (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt	$ 11,462		$ 10,956
Less: short-term debt including current maturities	47		226
Long-term debt	$ 11,415		10,730
Repayments of debt		$ 142
Senior Notes | 4.125% Senior Notes due 2023
Debt Instrument [Line Items]
Stated interest rate	4.125%
Total debt	$ 0		38
Repayments of debt	$ 38
Senior Notes | 3.625% Senior Notes due 2024
Debt Instrument [Line Items]
Stated interest rate	3.625%
Total debt	$ 47		48
Senior Notes | 4.75% Senior Notes due 2025
Debt Instrument [Line Items]
Stated interest rate	4.75%
Total debt	$ 4		4
Senior Notes | 4.00% Senior Notes due 2026
Debt Instrument [Line Items]
Stated interest rate	4.00%
Total debt	$ 3		3
Senior Notes | 2.95% Senior Notes due 2027
Debt Instrument [Line Items]
Stated interest rate	2.95%
Total debt	$ 497		496
Unamortized debt discount and issuance costs	$ 3
Senior Notes | 2.45% Senior Notes due 2027
Debt Instrument [Line Items]
Stated interest rate	2.45%
Total debt	$ 1,239		1,237
Unamortized debt discount and issuance costs	$ 11
Senior Notes | 4.75% Senior Notes due 2028
Debt Instrument [Line Items]
Stated interest rate	4.75%
Total debt	$ 814		823
Senior Notes | 4.25% Senior Notes due 2029
Debt Instrument [Line Items]
Stated interest rate	4.25%
Total debt	$ 1,019		1,029
Senior Notes | 2.5% Senior Notes due 2029
Debt Instrument [Line Items]
Stated interest rate	2.50%
Total debt	$ 497		497
Unamortized debt discount and issuance costs	$ 3
Senior Notes | 2.7% Sustainability-Linked Senior Notes, due 2029
Debt Instrument [Line Items]
Stated interest rate	2.70%
Total debt	$ 1,235		1,233
Unamortized debt discount and issuance costs	$ 15
Senior Notes | 1.25% Senior Notes due 2030
Debt Instrument [Line Items]
Stated interest rate	1.25%
Total debt	$ 594		594
Unamortized debt discount and issuance costs	$ 6
Senior Notes | 2.90% Senior Notes due 2032
Debt Instrument [Line Items]
Stated interest rate	2.90%
Total debt	$ 1,474		1,472
Unamortized debt discount and issuance costs	$ 26
Senior Notes | 5.25% Senior Notes due 2033
Debt Instrument [Line Items]
Stated interest rate	5.25%
Total debt	$ 743		0
Unamortized debt discount and issuance costs	$ 7
Senior Notes | 6.55% Senior Notes due 2037
Debt Instrument [Line Items]
Stated interest rate	6.55%
Total debt	$ 291		290
Unamortized debt discount and issuance costs	$ 2
Senior Notes | 4.5% Senior Notes due 2048
Debt Instrument [Line Items]
Stated interest rate	4.50%
Total debt	$ 272		272
Unamortized debt discount and issuance costs	$ 11
Senior Notes | 3.25% Senior Notes due 2049
Debt Instrument [Line Items]
Stated interest rate	3.25%
Total debt	$ 590		590
Unamortized debt discount and issuance costs	$ 10
Senior Notes | 3.70% Senior Notes due 2052
Debt Instrument [Line Items]
Stated interest rate	3.70%
Total debt	$ 974		974
Unamortized debt discount and issuance costs	$ 26
Senior Notes | 2.3% Senior Notes due 2060
Debt Instrument [Line Items]
Stated interest rate	2.30%
Total debt	$ 683		682
Unamortized debt discount and issuance costs	$ 17
Senior Notes | 3.9% Senior Notes due 2062
Debt Instrument [Line Items]
Stated interest rate	3.90%
Total debt	$ 486		486
Unamortized debt discount and issuance costs	14
Commercial paper
Debt Instrument [Line Items]
Total debt	$ 0		$ 188