Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of Repurchase Agreements (Details)

v3.21.2
Stockholders' Equity - Schedule of Repurchase Agreements (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Shares Repurchase Activity [Line Items]          
Amount $ 328 $ 165 $ 844 $ 408  
Treasury stock $ 7   $ 7   $ 19
Open Market Repurchases          
Shares Repurchase Activity [Line Items]          
Shares (in shares)     138 70  
Amount     $ 844 $ 408