CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - Parenthetical - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts receivable, reserves	$ 6	$ 8
Property and equipment, accumulated depreciation	$ 94	$ 84
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Liquidation preference per share (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares authorized (in shares)	250,000	250,000
Preferred stock shares issued (in shares)	250,000	250,000
Preferred stock, shares outstanding (in shares)	250,000	250,000
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	675,000,000	675,000,000
Common stock, shares issued (in shares)	112,674,657	111,620,507
Common stock, shares outstanding (in shares)	112,674,657	111,620,507