Schedule II - Valuation and Qualifying Accounts - Summary of Valuation Allowance (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Beginning balance		$ 17	$ 16	$ 16
Charged to costs and expenses		2	21	1
Charged to other accounts	[1],[2]	0	0	0
Deductions	[2]	(4)	(20)	(1)
Ending balance		15	17	16
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Beginning balance		9	10	22
Charged to costs and expenses		0	0	0
Charged to other accounts	[1],[2]	(2)	(1)	(12)
Deductions	[2]			0
Ending balance		$ 7	$ 9	$ 10

[1] The adjustment to the valuation allowance for deferred tax assets represents changes in estimates of our future taxable income and our estimated future usage of certain net operating loss carryforwards, as well as expiration of certain net operating loss carryforwards.

[2] The adjustments to our allowance for credit losses include net adjustments related to write-offs of receivable balances not considered collectible less recoveries of amounts previously considered to be uncollectable.