Stockholders' Equity - Quarterly Dividends (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Apr. 23, 2019 |
Jan. 29, 2019 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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| Equity [Abstract] | ||||||
| Dividends Per Share (in dollars per share) | $ 0.0121 | $ 0.0121 | $ 0.0121 | $ 0.0110 | $ 0.0242 | $ 0.0220 |
| Total Amount | $ 56 | $ 57 | ||||
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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