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)

v3.6.0.2
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, 2016
USD ($)
$ / shares
shares
Shares  
Ending Balance | shares 1,828
Exercisable at December 31, 2016 | shares 1,410
Weighted-Average Exercise Price  
Ending Balance | $ / shares $ 80.45
Exercisable at December 31, 2016 | $ / shares $ 75.07
Weighted-Average Remaining Contractual Term (in years)  
Outstanding at December 31, 2016 4 years 3 months 4 days
Nonqualified Stock Options  
Shares  
Beginning Balance | shares 2,771
Exercised | shares (1,186)
Granted | shares 259
Forfeited / Expired | shares (16)
Ending Balance | shares 1,828
Options Vested and Expected to Vest | shares 1,828
Exercisable at December 31, 2016 | shares 1,410
Weighted-Average Exercise Price  
Beginning Balance | $ / shares $ 77.33
Exercised | $ / shares 77.63
Granted | $ / shares 100.92
Forfeited / Expired | $ / shares 80.88
Ending Balance | $ / shares 80.45
Options Vested and Expected to Vest | $ / shares 80.45
Exercisable at December 31, 2016 | $ / shares $ 75.07
Weighted-Average Remaining Contractual Term (in years)  
Outstanding at December 31, 2016 4 years 3 months 4 days
Options Vested and Expected to Vest 4 years 3 months 4 days
Exercisable at December 31, 2016 3 years 4 days
Aggregate Intrinsic Value  
Outstanding at December 31, 2016 | $ $ 62
Options Vested and Expected to Vest | $ 62
Exercisable at December 31, 2016 | $ $ 56