Fair Value Measurements - Effect of Interest Rate Swap Contracts Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Total interest expense which reflects the effects of cash flow hedges	$ (309)	$ (327)	$ (478)
Hedged item	(20)	(17)	(20)
Derivative designated as hedging instrument	$ 35	$ 10	$ 1