Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for doubtful accounts - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Valuation Allowances [Roll Forward]
Balance at beginning of year	$ 48	$ 26	$ 30
Net charges to income	27	58	14
Deductions and other	(21)	(36)	(18)
Balance at end of year	$ 54	$ 48	$ 26