Consolidated Balance Sheet (Parenthetical) - USD ($) shares in Thousands, $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Common stock, shares issued	434,000	433,000
Common stock, shares outstanding	434,000	433,000
Common stock, par value (dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,200,000	1,200,000
Accounts Receivable, Allowance for Credit Loss	$ 19	$ 19