Fair Values of Derivative Instruments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Assets
Derivatives	$ 372	$ 483
Liabilities
Derivatives	(115)	(155)
Non-designated hedge derivatives
Assets
Derivatives	236	300
Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	201	215
Non-designated hedge derivatives | Other current assets
Assets
Derivatives	35	85
Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(113)	(141)
Designated hedge derivatives
Assets
Derivatives	136	183
Designated hedge derivatives | Short-term investments
Assets
Derivatives	8	6
Designated hedge derivatives | Other current assets
Assets
Derivatives	128	177
Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(2)	(14)
Foreign Exchange Contracts
Assets
Derivatives	189	282
Liabilities
Derivatives	(79)	(98)
Foreign Exchange Contracts | Non-designated hedge derivatives
Assets
Derivatives	53	99
Foreign Exchange Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	18	14
Foreign Exchange Contracts | Non-designated hedge derivatives | Other current assets
Assets
Derivatives	35	85
Foreign Exchange Contracts | Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(77)	(84)
Foreign Exchange Contracts | Designated hedge derivatives
Assets
Derivatives	136	183
Foreign Exchange Contracts | Designated hedge derivatives | Short-term investments
Assets
Derivatives	8	6
Foreign Exchange Contracts | Designated hedge derivatives | Other current assets
Assets
Derivatives	128	177
Foreign Exchange Contracts | Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(2)	(14)
Equity Contracts
Assets
Derivatives	156	162
Liabilities
Derivatives	(16)	(19)
Equity Contracts | Non-designated hedge derivatives
Assets
Derivatives	156	162
Equity Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	156	162
Equity Contracts | Non-designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Equity Contracts | Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(16)	(19)
Equity Contracts | Designated hedge derivatives
Assets
Derivatives	0	0
Equity Contracts | Designated hedge derivatives | Short-term investments
Assets
Derivatives	0	0
Equity Contracts | Designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Equity Contracts | Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	0	0
Interest-Rate Contracts
Assets
Derivatives	7	10
Liabilities
Derivatives	(6)	(17)
Interest-Rate Contracts | Non-designated hedge derivatives
Assets
Derivatives	7	10
Interest-Rate Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	7	10
Interest-Rate Contracts | Non-designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Interest-Rate Contracts | Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(6)	(17)
Interest-Rate Contracts | Designated hedge derivatives
Assets
Derivatives	0	0
Interest-Rate Contracts | Designated hedge derivatives | Short-term investments
Assets
Derivatives	0	0
Interest-Rate Contracts | Designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Interest-Rate Contracts | Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	0	0
Credit Contracts
Assets
Derivatives	17	26
Liabilities
Derivatives	(14)	(21)
Credit Contracts | Non-designated hedge derivatives
Assets
Derivatives	17	26
Credit Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	17	26
Credit Contracts | Non-designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Credit Contracts | Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(14)	(21)
Credit Contracts | Designated hedge derivatives
Assets
Derivatives	0	0
Credit Contracts | Designated hedge derivatives | Short-term investments
Assets
Derivatives	0	0
Credit Contracts | Designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Credit Contracts | Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	0	0
Commodity Contracts
Assets
Derivatives	3	3
Liabilities
Derivatives	0	0
Commodity Contracts | Non-designated hedge derivatives
Assets
Derivatives	3	3
Commodity Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	3	3
Commodity Contracts | Non-designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Commodity Contracts | Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	0	0
Commodity Contracts | Designated hedge derivatives
Assets
Derivatives	0	0
Commodity Contracts | Designated hedge derivatives | Short-term investments
Assets
Derivatives	0	0
Commodity Contracts | Designated hedge derivatives | Other current assets
Assets
Derivatives	0	0
Commodity Contracts | Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	$ 0	$ 0