Contract Assets and Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Jun. 28, 2019
Revenue from Contract with Customer [Abstract]
Contract assets	$ 2,625		$ 807
Contract liabilities, current	(1,210)		(496)
Contract liabilities, non-current	(80)		(42)
Net contract assets	1,335		269
Components of Contract Assets:
Unbilled contract receivables, gross	3,969		916
Progress payments and advances	(1,344)		(109)
Contract assets	2,625		$ 807
Recognized sales on contract liabilities	$ 600	$ 200