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Stockholders' Equity - Share-based Compensation (Details) - Performance Stock Units (PSU)
$ in Millions
1 Months Ended 12 Months Ended
Feb. 28, 2021
Aug. 31, 2020
employee
Jan. 03, 2021
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation vesting performance period   3 years 3 years
Number of employees effected by modification | employee   49  
Incremental share-based compensation cost | $     $ 47
Subsequent Event      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation vesting performance period 3 years