Quarterly report pursuant to Section 13 or 15(d)

Share Repurchase Program (Details)

v3.20.2
Share Repurchase Program (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Equity [Abstract]        
Stock Repurchase Program, Period in Force     3 years  
Stock Repurchase Program, Authorized Amount $ 1,000   $ 1,000  
Treasury Stock, Shares, Acquired 0 44,600 2,875,376 44,600
Treasury Stock Acquired, Average Cost Per Share $ 0 $ 68.30 $ 53.88 $ 68.30
Payments for Repurchase of Common Stock $ 0 $ 3 $ 155 $ 3
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 596   $ 596