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 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Shares Repurchase Activity [Line Items]          
Amount $ 324 $ 486 $ 1,168 $ 894  
Treasury stock $ 13   $ 13   $ 19
Open Market Repurchases          
Shares Repurchase Activity [Line Items]          
Shares (in shares)     190 156  
Amount     $ 1,168 $ 894