Schedule II - Schedule of Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - Schedule of Valuation and Qualifying Accounts

(in millions)
Description	Balance January 1,		Charged to Expenses	Write-offs/ Payments/ Other	Balance December 31,
2021
Allowance for doubtful accounts	$	15	53	(58)	$	10
Deferred tax assets—valuation allowance	$	54	29	—	$	83
2020
Allowance for doubtful accounts	$	14	60	(59)	$	15
Deferred tax assets—valuation allowance	$	70	3	(19)	$	54
2019
Allowance for doubtful accounts	$	7	53	(46)	$	14
Deferred tax assets—valuation allowance	$	66	4	—	$	70