Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Stock Repurchase Activity) (Details)

v3.21.1
Earnings Per Share (Stock Repurchase Activity) (Details)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
$ / shares
shares
Earnings Per Share [Abstract]  
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 191
Shares  
Treasury stock, beginning (in shares) | shares 7.7
Treasury stock, acquired (in shares) | shares 0.0
Treasury stock, ending (in shares) | shares 7.7
Cost  
Treasury stock, cost, beginning $ 408
Treasury stock, cost, acquired 0
Treasury stock, cost, ending $ 408
Average Price Per Share  
Treasury stock, average price per share, beginning (in usd per share) | $ / shares $ 53.43
Treasury stock, average price per share, acquired (in usd per share) | $ / shares 0
Treasury stock, average price per share, ending (in usd per share) | $ / shares $ 53.43