Receivables - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Receivables [Abstract]
Receivables	$ 269	$ 295
Allowance
Allowance at beginning of year	(3)	(3)
Current period provision for expected credit losses	0	(1)
Reversal of allowance	1	0
Write-off against allowance	0	1
Allowance at end of year	(2)	(3)
Total receivables, net of allowance	$ 267	$ 292