CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Receivable	$ 84	$ 60
Preferred stock (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized (in shares)	10,000,000	10,000,000
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Common stock (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	250,000,000	250,000,000
Common stock issued (in shares)		137,000,000
Treasury Stock (in shares)	81,000,000	67,000,000