Debt - Commercial Paper Program (Details) - Commercial Paper Program - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument
Maximum outstanding amount capacity	$ 2,000,000,000	$ 2,000,000,000
Borrowings	$ 424,000,000	$ 996,000,000
Debt instrument, term (in months)	22 days	2 months
Weighted-average interest rate (as a percent)	5.62%	4.90%