Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 4,530,978	$ 4,802,721	$ 4,578,678	$ 5,107,569
Amounts reclassified from other comprehensive (loss)	35,512	28,422	105,847	85,539
Ending balance	4,747,726	5,026,983	4,747,726	5,026,983
Foreign Currency Translation Adjustment and Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(844,121)	(641,018)
Other comprehensive income before reclassifications			(169,883)	(71,989)
Amounts reclassified from other comprehensive (loss)			(1,032)	(470)
Ending balance	(1,015,036)	(713,477)	(1,015,036)	(713,477)
Retirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(1,383,644)	(1,097,600)
Other comprehensive income before reclassifications			0	0
Amounts reclassified from other comprehensive (loss)			105,847	85,539
Ending balance	(1,277,797)	(1,012,061)	(1,277,797)	(1,012,061)
Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(2,227,765)	(1,738,618)
Other comprehensive income before reclassifications			(169,883)	(71,989)
Amounts reclassified from other comprehensive (loss)			104,815	85,069
Ending balance	$ (2,292,833)	$ (1,725,538)	$ (2,292,833)	$ (1,725,538)