Equity-Based Compensation - Summary of Activity from Continuing and Discontinued Operations Related to Target PSUs and RSUs Settled in Shares (Parenthetical) (Detail) - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, Granted	[1]	4,502	3,472	2,975
Number of shares, Cancelled	[2]	1,236	2,141	1,202
Fair value of PSUs and RSUs vested during the period		$ 44	$ 26	$ 32
Intrinsic value of unvested RSUs and target PSUs		$ 119
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, Granted		400	300	500
Number of shares, Cancelled		100	300	300
Restricted Stock Units [Member] | Settled in Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, Granted		400	300	500
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, Granted		5,500	4,200	3,400
Payout adjustment of performance share units		400	200	200
Number of shares, Cancelled		700	800	300
Payout adjustment of performance share units		400	200	200
Performance Stock Units [Member] | Settled in Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, Granted		4,100	3,000	2,300

[1] For fiscal 2017, includes 4.1 million target PSUs and 0.4 million RSUs granted. For fiscal 2016, includes 3.0 million target PSUs and 0.3 million RSUs granted and a payout adjustment of 0.2 million PSUs due to the actual performance level achieved for PSUs granted in fiscal 2013 that vested during fiscal 2016. For fiscal 2015, includes 2.3 million target PSUs and 0.5 million RSUs granted and a payout adjustment of 0.2 million PSUs due to the actual performance level achieved for PSUs granted in fiscal 2012 that vested during fiscal 2015.

[2] For fiscal 2017, includes 0.7 million of target PSUs and 0.1 million RSUs cancelled and a payout adjustment of 0.4 million PSUs due to the actual performance level achieved for PSUs granted in fiscal 2014 that vested during fiscal 2017. For fiscal 2016, includes 0.8 million of target PSUs and 0.3 million RSUs cancelled and a payout adjustment of 1.0 million PSUs due to the actual performance level achieved for PSUs granted in fiscal 2013 that vested during fiscal 2016. For fiscal 2015, includes 0.3 million of target PSUs and 0.3 million RSUs cancelled during fiscal 2015 and a payout adjustment of 0.6 million PSUs due to the actual performance level achieved for PSUs granted in fiscal 2012 that vested during fiscal 2015.