Debt - Schedule of short-term and long-term debt outstanding (Details) - USD ($) $ in Millions	Mar. 31, 2022	Mar. 04, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt	$ 11,392		$ 4,114
Less: short-term debt including current maturities	66		0
Long-term debt	$ 11,326		4,114
Senior Notes | 5% Senior Notes due 2022
Debt Instrument [Line Items]
Stated interest rate (as a percent)	5.00%
Total debt	$ 66		0
Senior Notes | 4.125% Senior Notes due 2023
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.125%
Total debt	$ 39		0
Senior Notes | 3.625% Senior Notes due 2024
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.625%
Total debt	$ 48		0
Senior Notes | 4.75% Senior Notes due 2025
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.75%
Total debt	$ 267		0
Senior Notes | 4.0% Senior Notes due 2025
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.00%	4.00%
Total debt	$ 283		696
Unamortized debt discount and issuance costs	$ 4
Senior Notes | 4.00% Senior Notes due 2026
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.00%
Total debt	$ 3		0
Senior Notes | 2.95% Senior Notes due 2027
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.95%
Total debt	$ 496		496
Unamortized debt discount and issuance costs	$ 4
Senior Notes | 2.45% Senior Notes due 2027
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.45%	2.45%
Total debt	$ 1,234		0
Unamortized debt discount and issuance costs	$ 16
Senior Notes | 4.75% Senior Notes due 2028
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.75%
Total debt	$ 834		0
Senior Notes | 4.25% Senior Notes due 2029
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.25%
Total debt	$ 1,038		0
Senior Notes | 2.5% Senior Notes due 2029
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.50%
Total debt	$ 496		496
Unamortized debt discount and issuance costs	$ 4
Senior Notes | Sustainability-Linked Senior Notes 2.7% due 2029
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.70%	2.70%
Total debt	$ 1,231		0
Unamortized debt discount and issuance costs	$ 19
Senior Notes | 1.25% Senior Notes due 2030
Debt Instrument [Line Items]
Stated interest rate (as a percent)	1.25%
Total debt	$ 593		593
Unamortized debt discount and issuance costs	$ 7
Senior Notes | 2.90% Senior Notes due 2032
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.90%	2.90%
Total debt	$ 1,469		0
Unamortized debt discount and issuance costs	$ 31
Senior Notes | 6.55% Senior Notes due 2037
Debt Instrument [Line Items]
Stated interest rate (as a percent)	6.55%
Total debt	$ 290		290
Unamortized debt discount and issuance costs	$ 3
Senior Notes | 4.5% Senior Notes due 2048
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.50%
Total debt	$ 273		273
Unamortized debt discount and issuance costs	$ 10
Senior Notes | 3.25% Senior Notes due 2049
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.25%
Total debt	$ 590		589
Unamortized debt discount and issuance costs	$ 10
Senior Notes | 3.70% Senior Notes due 2052
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.70%	3.70%
Total debt	$ 974		0
Unamortized debt discount and issuance costs	$ 26
Senior Notes | 2.3% Senior Notes due 2060
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.30%
Total debt	$ 682		681
Unamortized debt discount and issuance costs	$ 18
Senior Notes | 3.9% Senior Notes due 2062
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.90%	3.90%
Total debt	$ 486		$ 0
Unamortized debt discount and issuance costs	$ 14