v3.19.3.a.u2
Share-Based Payments (Summary Of Nonvested Stock Units Activity) (Details)
shares in Millions
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Share-Based Payment  
Beginning balance - outstanding nonvested units | shares 39
Granted - nonvested units (period) | shares 27
Vested - nonvested units (period) | shares (21)
Forfeited - nonvested units (period) | shares (3)
Ending balance - outstanding nonvested units | shares 42
Beginning balance - weighted average exercise price of outstanding nonvested units | $ / shares $ 38.44
Weighted average exercise price - granted - nonvested units | $ / shares 31.18
Weighted average exercise price - vested - nonvested units | $ / shares 39.03
Weighted average exercise price - forfeited nonvested units | $ / shares 34.26
Ending balance - weighted average exercise price of nonvested units | $ / shares $ 33.80