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Gains (Losses) Related to Cash Flow Hedges (Parenthetical) (Detail) (Designated hedge derivatives, Foreign Exchange Contracts, USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Designated hedge derivatives \| Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI, tax effect	$ (12)	$ 69

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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