Stockholders' Equity - Stock Option Award Activity (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Aggregate Intrinsic Value | |||
| Aggregate intrinsic value of the options exercised | $ 185 | $ 315 | $ 359 |
| Employee Stock Option | |||
| Number of Shares | |||
| Beginning balance (in shares) | 1,137,000 | ||
| Stock options exercised (in shares) | (1,137,000) | ||
| Ending balance (in shares) | 0 | 1,137,000 | |
| Weighted-Average Exercise Price | |||
| Beginning Balance (in dollars per share) | $ 13.74 | ||
| Stock options exercised (in dollars per share) | 13.74 | ||
| Ending Balance (in dollars per share) | $ 0 | $ 13.74 | |
| Weighted-Average Remaining Contractual Term | |||
| Balance at period end | 0 years | ||
| Aggregate Intrinsic Value | |||
| Balance at period end | $ 0 | ||
| Options granted (in shares) | 0 | ||
| Options forfeited or canceled (in shares) | 0 | ||
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] No definition available.
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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