Equity - Changes in accumulated other comprehensive (loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jul. 01, 2018
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Beginning Balance	$ 5,865,493	$ 5,267,346
Impact of adoption of ASU 2016-01			$ 49,869
Other comprehensive income (loss) before reclassifications	(395,236)	66,276
Amounts reclassified from accumulated other comprehensive (loss)	101,008	94,842
Ending Balance	5,968,152	5,865,493
Foreign Currency Translation Adjustment and Other
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Beginning Balance	(943,477)	(925,342)
Other comprehensive income (loss) before reclassifications	(70,023)	(10,141)
Amounts reclassified from accumulated other comprehensive (loss)	3,578	(7,994)
Ending Balance	(1,011,656)	(943,477)
Retirement Benefit Plans
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Beginning Balance	(819,609)	(998,862)
Impact of adoption of ASU 2016-01	0
Other comprehensive income (loss) before reclassifications	(325,213)	76,417
Amounts reclassified from accumulated other comprehensive (loss)	97,430	102,836
Ending Balance	(1,047,392)	(819,609)
AOCI Attributable to Parent
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Beginning Balance	(1,763,086)	(1,924,204)
Impact of adoption of ASU 2016-01			(1,734)
Ending Balance	(2,059,048)	$ (1,763,086)
Accounting Standards Update 2016-01
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Impact of adoption of ASU 2016-01	(1,734)
Accounting Standards Update 2016-01 | Foreign Currency Translation Adjustment and Other
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Impact of adoption of ASU 2016-01	$ (1,734)
Accounting Standards Update 2016-01 | AOCI Attributable to Parent
Other Comprehensive Income (Loss) Net of Tax, Period Change [Abstract]
Impact of adoption of ASU 2016-01			$ (2,000)