Debt - Commercial Paper Program (Details) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2022
Line of Credit Facility [Line Items]
Facility capacity	$ 20,500,000,000		$ 20,500,000,000
Principal amount outstanding	6,735,000,000		6,735,000,000
Line of Credit
Line of Credit Facility [Line Items]
Amount drawn from credit facilities		$ 1,000,000,000
Facility capacity		$ 1,000,000,000
Repayments of credit facilities	1,000,000,000
Principal amount outstanding	0		0
Commercial Paper
Line of Credit Facility [Line Items]
Proceeds from commercial paper			27,400,000,000
Repayments of short-term debt			27,300,000,000
Commercial paper, amount outstanding	$ 150,000,000		$ 150,000,000