Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 54	$ 48
Common stock, par value (USD per share)	$ 1	$ 1
Common stock authorized (shares)	600,000,000	600,000,000
Common stock issued (shares)	415,000,000	415,000,000
Treasury stock (shares)	93,000,000	86,000,000