Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Accumulated depreciation	$ 351	$ 287
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

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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-Publisher FASB
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Face amount or stated value per share of common stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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-Name Accounting Standards Codification
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-SubTopic 10
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