Credit Losses on Financial Instruments (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance at December 31, 2021	$ 39
Provision for expected losses	7
Write-offs charged against the allowance	(12)
Recoveries collected	2
Change in allowance in assets held for sale (1)	1
Ending balance at June 30, 2022	37
Disposal Group, Held-for-sale, Not Discontinued Operations
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts	$ 2	$ 3