Schedule of Debt Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Debt Instrument [Line Items]
Long-term debt	$ 2,733,140	$ 2,947,102
Total long-term debt	2,733,140	2,947,102
Less long-term debt payable within one year	58,140	223,142
Long-term debt, net	2,675,000	2,723,960
Domestic | Fixed rate medium-term notes 3.30% to 6.55%, due 2018-2045
Debt Instrument [Line Items]
Long-term debt	2,675,000	2,675,000
Foreign | Bank loans, including revolving credit 1% to 11.75%, due 2016
Debt Instrument [Line Items]
Long-term debt	0	322
Foreign | Euro Bonds 4.125%, due 2016
Debt Instrument [Line Items]
Long-term debt	0	222,820
Foreign | Japanese Yen credit facility JPY Libor plus 55 bps, due 2017
Debt Instrument [Line Items]
Long-term debt	$ 58,140	$ 48,960