Derivatives in Cash Flow Hedging Relationships (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Dec. 29, 2017	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI	$ 14	$ (119)	$ 15	$ (97)
Amount of Gain (Loss) Reclassified from AOCI into Earnings	4	16	1	42
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI	7	(119)	7	(97)
Amount of Gain (Loss) Reclassified from AOCI into Earnings	4	16	1	42
Interest rate swap contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI	$ 7	$ 0	$ 8	$ 0