Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Derivative [Line Items]
Accumulated other comprehensive loss	$ 1,263		$ 1,263		$ 1,365
Level 3 | Fair Value
Derivative [Line Items]
Carrying amounts of deferred purchase price assets	681		681		779
Interest Expense
Derivative [Line Items]
Amount amortized from AOCI into interest expense	51	$ 47	151	$ 140
Amount expected to be amortized from AOCI into interest expense over next 12 months			215
Interest Rate Contract
Derivative [Line Items]
Accumulated other comprehensive loss	$ 1,300		$ 1,300		$ 1,500