CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Allowance for doubtful accounts receivable	$ 68	$ 52
Assets, variable interest entity	8,478	8,004
Liabilities, variable interest entity	$ 6,346	$ 5,853
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)	112,515,473	113,628,706
Common stock, shares outstanding (in shares)	112,515,473	113,628,706
Variable Interest Entities
Assets, variable interest entity	$ 1,084	$ 948
Liabilities, variable interest entity	$ 1,097	$ 1,005