CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Allowance for doubtful accounts receivable	$ 48	$ 39
Assets, variable interest entity	8,132	8,008
Liabilities, variable interest entity	$ 6,055	$ 6,020
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	300,000,000	300,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	3,000,000,000	3,000,000,000
Common stock, shares issued (in shares)	118,501,896	119,904,001
Common stock, shares outstanding (in shares)	118,501,896	119,904,001
Variable Interest Entities
Assets, variable interest entity	$ 915	$ 1,100
Liabilities, variable interest entity	$ 811	$ 1,199