Changes in Accumulated Other Comprehensive Loss - Schedule of Changes In Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 4,724
Other comprehensive income (loss) before reclassifications	49	$ (52)
Amounts reclassified from accumulated other comprehensive loss	(29)	15
Net current-period other comprehensive income (loss)	20	(37)
Ending balance	6,008
Changes related to cash flow derivative hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(666)	(638)
Other comprehensive income (loss) before reclassifications	42	(42)
Amounts reclassified from accumulated other comprehensive loss	(29)	15
Net current-period other comprehensive income (loss)	13	(27)
Ending balance	(653)	(665)
Changes in defined benefit plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(2)	(8)
Other comprehensive income (loss) before reclassifications	(3)	0
Amounts reclassified from accumulated other comprehensive loss	0	0
Net current-period other comprehensive income (loss)	(3)	0
Ending balance	(5)	(8)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(6)	3
Other comprehensive income (loss) before reclassifications	10	(10)
Amounts reclassified from accumulated other comprehensive loss	0	0
Net current-period other comprehensive income (loss)	10	(10)
Ending balance	4	(7)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(674)	(643)
Ending balance	$ (654)	$ (680)