Accumulated Other Comprehensive Loss - Amounts reclassified from AOCL (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Interest expense, net	$ (30)	$ (30)	$ (59)	$ (59)
Other (expense) income, net	(3)	3	(13)	6
Income before income taxes	154	140	317	294
Income tax expense	32	30	66	64
Net income	122	110	251	230
Reclassified from AOCL | Interest rate swaps
Accumulated Other Comprehensive Income Loss [Line Items]
Interest expense, net	(3)	(3)	(6)	(7)
Reclassified from AOCL | Prior service cost
Accumulated Other Comprehensive Income Loss [Line Items]
Other (expense) income, net	2	3	5	5
Reclassified from AOCL | Pension and OPEB liability adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Income before income taxes	(1)	0	(1)	(2)
Net income	$ (1)	$ 0	$ (1)	$ (2)