SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2021

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

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

For the Years Ended December 31, 2021, 2020, and 2019

(in millions)

			Additions
	Balance  at Beginning of Period		Charged (Credited)  to Costs and Expenses		Charged  to Other Accounts (1)		Deductions or Write-offs		Balance at End  of Period
Allowance for loss on receivables:
2021	$	72	$	21	$	(3)	$	(7)	$	83
2020	69		36		(1)		(32)		72
2019	79		(1)		—		(9)		69
Deferred tax asset valuation allowance:
2021	(37)		(28)		—		—		(65)
2020	(45)		8		—		—		(37)
2019	(54)		9		—		—		(45)

(1)Represents changes in retroactive membership adjustments to premiums revenue and contractual allowances adjustments to services revenue as more fully described in Note 2 to the consolidated financial statements included in this annual report on Form 10-K.