| Employee Benefit Plan | 12 Months Ended | 
|---|---|
| Dec. 31, 2020 | |
| Retirement Benefits [Abstract] | |
| Employee Benefit Plan | EMPLOYEE BENEFIT PLANWe have a defined contribution plan (“401(k) Plan”) which allows eligible employees to contribute up to 75% of their compensation up to the IRS maximum. We match each employee’s deferrals (contributions) up to 6% of compensation and may make additional contributions at our discretion. Employees are immediately vested in the contributions made by us. Our contributions to the 401(k) Plan were $15 million for each of the years ended December 31, 2020 and 2019 and $9 million for the year ended December 31, 2018. We have made no discretionary contributions to the 401(k) Plan to date. | 
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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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