Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Options to Purchase Shares of Class A Common Stock Issued and Outstanding (Detail)

v3.10.0.1
STOCK-BASED COMPENSATION - Options to Purchase Shares of Class A Common Stock Issued and Outstanding (Detail)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
$ / shares
shares
Shares  
Ending Balance | shares 1,384
Exercisable at December 31, 2018 | shares 857
Weighted-Average Exercise Price  
Ending Balance | $ / shares $ 95.36
Exercisable at December 31, 2018 | $ / shares $ 89.36
Weighted-Average Remaining Contractual Term (in years)  
Outstanding at December 31, 2018 6 years 3 months 11 days
Nonqualified Stock Options  
Shares  
Beginning Balance | shares 1,291
Exercised | shares (178)
Granted | shares 279
Forfeited / Expired | shares (8)
Ending Balance | shares 1,384
Options Vested and Expected to Vest | shares 1,384
Exercisable at December 31, 2018 | shares 857
Weighted-Average Exercise Price  
Beginning Balance | $ / shares $ 91.58
Exercised | $ / shares 84.79
Granted | $ / shares 106.38
Forfeited / Expired | $ / shares 104.87
Ending Balance | $ / shares 95.36
Options Vested and Expected to Vest | $ / shares 95.36
Exercisable at December 31, 2018 | $ / shares $ 89.36
Weighted-Average Remaining Contractual Term (in years)  
Outstanding at December 31, 2018 6 years 3 months 10 days
Options Vested and Expected to Vest 6 years 3 months 10 days
Exercisable at December 31, 2018 5 years 18 days
Aggregate Intrinsic Value  
Outstanding at December 31, 2018 | $ $ 9
Options Vested and Expected to Vest | $ 9
Exercisable at December 31, 2018 | $ $ 9