Credit Losses on Financial Instruments (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss
Beginning balance at December 31, 2022	$ 19
Provision for expected losses	5
Write-offs charged against the allowance	(15)
Recoveries collected	3
Change in allowance in assets held for sale	1
Ending balance at September 30, 2023(1)	13
Disposal Group, Held-for-sale, Not Discontinued Operations
Financing Receivable, Allowance for Credit Loss
Allowance for doubtful accounts	$ 4	$ 5