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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]    
Accumulated depreciation $ 287 $ 221
Common stock par value per share (in usd per share) $ 0.0001 $ 0.0001
Preferred stock par value (in dollars per share) $ 0.01 $ 0.01