Additional Financial Information - Components of Other Current Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Jul. 01, 2018	Jun. 30, 2018
Other Current Liabilities [Line Items]
Total Other current liabilities	$ 745	$ 566	$ 372
Other Current Liabilities [Member]
Other Current Liabilities [Line Items]
Royalties and commissions payable	241		187
Allowance for sales returns	198		0
Current tax payable	15		17
Other	291		168
Total Other current liabilities	$ 745		$ 372