Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule of Outstanding Awards) (Details)

v3.20.2
Stock-Based Compensation (Schedule of Outstanding Awards) (Details)
$ / shares in Units, shares in Thousands, $ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
shares
Series A common stock  
Awards  
Outstanding at beginning of period (in shares) 604
Granted (in shares) 513
Exercised (in shares) (29)
Outstanding at end of period (in shares) 1,088
Exercisable at end of period (in shares) 393
WAEP  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 48.67
Granted (in dollars per share) | $ / shares 67.10
Exercised (in dollars per share) | $ / shares 36.94
Outstanding at end of period (in dollars per share) | $ / shares 57.70
Exercisable at end of period (in dollars per share) | $ / shares $ 47.28
Weighted average remaining life  
Outstanding at end of period 5 years 2 months 12 days
Exercisable at end of period 3 years 8 months 12 days
Aggregate intrinsic value  
Outstanding at end of period | $ $ 15
Exercisable at end of period | $ $ 9
Series B common stock  
Awards  
Increase (decrease) in outstanding options 0