Shareholders' Equity Stock Option Activity (Detail) $ / shares in Units, shares in Millions, $ in Millions	6 Months Ended
	Dec. 29, 2017 USD ($) $ / shares shares
Number of Shares
Options outstanding, beginning balance, shares | shares	7.4
Exercised, shares | shares	(1.0)
Forfeited or expired, shares | shares	(0.2)
Options outstanding, ending balance, shares | shares	6.2
Exercisable, period end, shares | shares	3.6
Weighted Average Exercise Price Per Share
Options outstanding, beginning balance, exercise price, in dollars per share | $ / shares	$ 58.14
Exercised, exercise price, in dollars per share | $ / shares	43.16
Forfeited or expired, exercise price, in dollars per share | $ / shares	63.44
Options outstanding, ending balance, in dollars per share | $ / shares	60.39
Exercisable, period end, exercise price, in dollars per share | $ / shares	$ 64.14
Aggregate Intrinsic Value
Exercised, intrinsic value | $	$ 46
Options outstanding, ending balance, intrinsic value | $	145
Exercisable, period end, intrinsic value | $	$ 77
Options outstanding, weighted average remaining contractual term	4 years 1 month
Exercisable, period end, weighted average remaining contractual life	3 years 5 months