Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Incentive Equity Awards Activity) (Details)

v3.21.1
Stock-Based Compensation (Incentive Equity Awards Activity) (Details)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2021
USD ($)
$ / shares
shares
Weighted Average Grant Price  
Beginning balance (in dollars per share) $ 8.59
Ending balance (in dollars per share) $ 19.58
RSUs  
Number of RSUs  
Beginning balance (in shares) | shares 0.9
Granted (in shares) | shares 0.6
Vested/exercised (in shares) | shares (0.2)
Canceled (in shares) | shares (0.1)
Ending balance (in shares) | shares 1.2
Weighted Average Grant Price  
Beginning balance (in dollars per share) $ 54.15
Granted (in dollars per share) 65.21
Vested/exercised (in dollars per share) 53.23
Canceled (in dollars per share) 56.08
Ending balance (in dollars per share) $ 59.74
Weighted Average Exercise Price  
Aggregate unrecognized compensation expense | $ $ 68
Compensation expense not yet recognized, weighted average period 3 years 1 month 6 days
Performance Shares  
Number of RSUs  
Beginning balance (in shares) | shares 0.2
Granted (in shares) | shares 0.1
Ending balance (in shares) | shares 0.3
Weighted Average Grant Price  
Beginning balance (in dollars per share) $ 52.93
Granted (in dollars per share) 65.21
Ending balance (in dollars per share) $ 57.51
Weighted Average Exercise Price  
Aggregate unrecognized compensation expense | $ $ 16
Compensation expense not yet recognized, weighted average period 2 years
Options  
Number of Options  
Beginning balance (in shares) | shares 1.4
Granted (in shares) | shares 0.1
Exercised (in shares) | shares (0.1)
Forfeited (in shares) | shares 0.0
Expired (in shares) | shares 0.0
Ending balance (in shares) | shares 1.4
Weighted Average Exercise Price  
Beginning balance (in dollars per share) $ 55.57
Granted (in dollars per share) 65.21
Exercised (in dollars per share) 54.76
Canceled (in dollars per share) 0
Expired (in dollars per share) 0
Ending balance (in dollars per share) $ 56.18
Unvested options outstanding | shares 0.8
Options exercisable | shares 0.6
Unvested options weighted average exercise price (in dollars per share) $ 56.05
Exercisable options weighted average exercise price (in dollars per share) $ 56.35
Weighted average remaining contractual term, outstanding 5 years 3 months 18 days
Weighted average remaining contractual term, unvested 5 years 3 months 18 days
Weighted average remaining contractual term, exercisable 5 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding | $ $ 18
Aggregate Intrinsic Value, Unvested | $ 10
Aggregate Intrinsic Value, Exercisable | $ 8
Aggregate unrecognized compensation expense | $ $ 19
Compensation expense not yet recognized, weighted average period 2 years 6 months