Stock-Based Compensation - Summary of Incentive Equity Awards (Detail) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2015		Mar. 31, 2015
Stock Options [Member]
Number of Options
Number of Options, Beginning balance (in shares)	8,410,158	[1]	9,847,291
Number of Options, Granted (in shares)	936,042	[1]	1,072,672
Number of Options, Exercise of stock options (in shares)	(1,073,373)	[1],[2]	(2,591,210)	[3]
Number of Options, Expired/forfeited (in shares)	(34,692)	[1]	(90,618)
Number of Options, Ending balance (in shares)	8,238,135	[1],[4]	8,238,135	[1],[4]
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Beginning balance (in dollars per share)	$ 24.83		$ 23.73
Weighted-Average Exercise Price, Granted (in dollars per share)	$ 50.95		$ 50.10
Weighted-Average Exercise Price, Exercise of stock options (in dollars per share)	$ 19.34	[2]	$ 19.43	[3]
Weighted-Average Exercise Price, Expired/forfeited (in dollars per share)	$ 27.47		$ 24.98
Weighted-Average Exercise Price, Ending balance (in dollars per share)	$ 28.50	[4]	$ 28.50	[4]
Time-Based Restricted Stock Units [Member]
Number of Options
Number of Options, Beginning balance (in shares)	2,506,669		1,866,408
Number of Options, Granted (in shares)	19,844		714,273
Number of Options, Vesting of restricted stock units (in shares)	(61,769)	[5]	(71,793)	[6]
Number of Options, Expired/forfeited (in shares)	(69,201)		(113,345)
Number of Options, Ending balance (in shares)	2,395,543	[4]	2,395,543	[4]
Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning balance (in dollars per share)	$ 29.33		$ 25.69
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 48.58		$ 39.20
Weighted-Average Grant Date Fair Value, Vesting of restricted stock units (in dollars per share)	$ 22.54	[5]	$ 22.96	[6]
Weighted-Average Grant Date Fair Value, Expired/forfeited (in dollars per share)	$ 28.74		$ 28.28
Weighted-Average Grant Date Fair Value, Ending balance (in dollars per share)	$ 29.68	[4]	$ 29.68	[4]
Performance-Based Restricted Stock Units [Member]
Number of Options
Number of Options, Beginning balance (in shares)	868,014		662,282
Number of Options, Granted (in shares)	0		215,840
Number of Options, Vesting of restricted stock units (in shares)	(3,652)	[5]	(8,862)	[6]
Number of Options, Expired/forfeited (in shares)	(6,444)		(11,342)
Number of Options, Ending balance (in shares)	857,918	[4]	857,918	[4]
Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning balance (in dollars per share)	$ 28.90		$ 26.30
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 0.00		$ 36.91
Weighted-Average Grant Date Fair Value, Vesting of restricted stock units (in dollars per share)	$ 21.26	[5]	$ 22.46	[6]
Weighted-Average Grant Date Fair Value, Expired/forfeited (in dollars per share)	$ 26.80		$ 30.27
Weighted-Average Grant Date Fair Value, Ending balance (in dollars per share)	$ 28.95	[4]	$ 28.95	[4]

[1] Stock options outstanding as of March 31, 2015 have a weighted-average remaining contractual life of 6.3 years and 5.0 million stock options are exercisable.

[2] Stock options exercised during the period of January 1, 2015 through March 31, 2015 had an aggregate intrinsic value of $32.9 million.

[3] Stock options exercised during the period of July 1, 2014 through March 31, 2015 had an aggregate intrinsic value of $68.9 million.

[4] As of March 31, 2015, the Company's outstanding "in the money" stock options using the March 31, 2015 closing stock price of $55.01 (approximately 5.0 million shares) had an aggregate intrinsic value of $159.5 million. As of March 31, 2015, time-based restricted stock units and performance-based restricted stock units expected to vest using the March 31, 2015 share price of $55.01 (approximately 2.3 million and 0.9 million shares, respectively) had an aggregate intrinsic value of $126.3 million and $47.6 million, respectively.

[5] Time-based and performance-based restricted stock units that vested during the period of January 1, 2015 through March 31, 2015 had a fair value of $3.3 million and $0.2 million, respectively.

[6] Time-based and performance-based restricted stock units that vested during the period of July 1, 2014 through March 31, 2015 had a fair value of $3.5 million and $0.4 million, respectively.