Gains (Losses) Related to Cash Flow Hedges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Effective Portion
Gain (loss) recognized in OCI, net of tax effect of $(28) and $(48) for the three months ended March 31, 2012 and 2011, and $74 and $(315) for the nine months ended March 31, 2012 and 2011	$ (52)	$ (90)	$ 138	$ (587)
Gain (loss) reclassified from OCI into revenue	(12)	(30)	(82)	109
Designated hedge derivatives | Foreign Exchange Contracts
Amount Excluded from Effectiveness Assessment and Ineffective Portion
Loss recognized in other income (expense)	$ (107)	$ (123)	$ (172)	$ (226)