Accumulated Other Comprehensive Loss - Amounts reclassified from AOCL (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Interest expense, net	$ (21)	$ (27)	$ (68)	$ (83)
Other income (expense), net	10	(2)	(2)	10
Income before income taxes	249	193	687	621
Income tax expense	(49)	(35)	(131)	(118)
Net income	200	158	556	503
Reclassified from AOCL | Interest rate swaps
Accumulated Other Comprehensive Income Loss [Line Items]
Interest expense, net	3	3	10	8
Reclassified from AOCL | Prior service credit
Accumulated Other Comprehensive Income Loss [Line Items]
Other income (expense), net	3	2	7	7
Reclassified from AOCL | Pension settlement loss
Accumulated Other Comprehensive Income Loss [Line Items]
Other income (expense), net			(4)	0
Reclassified from AOCL | Recognized actuarial gain
Accumulated Other Comprehensive Income Loss [Line Items]
Other income (expense), net	0	1	2	2
Reclassified from AOCL | Pension and OPEB liability adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Income before income taxes	6	6	15	17
Income tax expense	(1)	(1)	(3)	(4)
Net income	$ 5	$ 5	$ 12	$ 13