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Stockholders' Equity - Narrative (Details) - USD ($) | Jun. 30, 2020 | Feb. 28, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock liquidation preference percentage | 4.00% |  |
2019 Program |  |  |
Class of Stock [Line Items] |  |  |
Stock repurchase program authorized amount |  | $ 1,500,000,000 |
2018 Program |  |  |
Class of Stock [Line Items] |  |  |
Stock repurchase program authorized amount |  |  | $ 1,000,000,000

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