CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Allowance for doubtful accounts	$ 3	$ 2
Variable interest entities assets	9,419	9,731
Variable interest entities liabilities	$ 5,651	$ 5,440
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	6,000,000,000	6,000,000,000
Common stock, issued (in shares)	210,676,264	224,573,858
Common stock, outstanding (in shares)	209,987,581	224,061,745
Variable Interest Entities
Variable interest entities assets	$ 236	$ 237
Variable interest entities liabilities	$ 219	$ 218