Condensed Statements of Consolidated Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Net income per the condensed statements of consolidated income	$ 29,302	$ 29,418	$ 85,877	$ 76,735
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(5,466)	5,912	2,941	(5,247)
Postemployment benefits:
Actuarial loss on remeasurement				(491)
Reclassification of actuarial losses and prior service cost into SD&A expense and included in net periodic pension costs	218	95	654	1,028
Impact of reduction in postemployment benefit liability (as forecasted salary increases will not be realized) due to the plan curtailment				8,860
Reclassification of prior service cost into SD&A expense upon plan curtailment				3,117
Unrealized gain (loss) on investment securities available for sale	42	69	65	(106)
Total of other comprehensive income (loss), before tax	(5,206)	6,076	3,660	7,161
Income tax expense related to items of other comprehensive income	99	45	278	4,762
Other comprehensive income (loss), net of tax	(5,305)	6,031	3,382	2,399
Comprehensive income, net of tax	$ 23,997	$ 35,449	$ 89,259	$ 79,134