Equity Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning Balance			$ (823,498)
Ending Balance	(1,290,363)		(823,498)
Foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning Balance	124,620	(68,328)
Other comprehensive income before reclassifications	(518,889)	179,955
Amounts reclassified from other comprehensive (loss)	0	0
Ending Balance	(394,269)	111,627
Retirement benefit plans
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning Balance	(947,890)	(1,039,072)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from other comprehensive (loss)	51,922	54,622
Ending Balance	(895,968)	(984,450)
Other
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning Balance	(228)	(433)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from other comprehensive (loss)	102	102
Ending Balance	(126)	(331)
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning Balance	(823,498)	(1,107,833)
Other comprehensive income before reclassifications	(518,889)	179,955
Amounts reclassified from other comprehensive (loss)	52,024	54,724
Ending Balance	$ (1,290,363)	$ (873,154)