Schedule II, Valuation and Qualifying Accounts (Details) - Allowance for Bad Debts - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Jan. 1		$ 13	$ 12	$ 8
Charged to costs and expenses		11	9	6
Charged to other accounts	[1]	1	1	3
Deductions from reserves	[2]	(10)	(9)	(5)
Balance at Dec. 31		$ 15	$ 13	$ 12

[1] Recovery of amounts previously written-off.

[2] Deductions related primarily to bad debt write-offs