Fair Values of Derivative Instruments (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Assets
Derivatives	$ 329	$ 483
Liabilities
Derivatives	(107)	(155)
Non-designated hedge derivatives
Assets
Derivatives	250	300
Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	190	215
Non-designated hedge derivatives | Other current assets
Assets
Derivatives	60	85
Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(88)	(141)
Designated hedge derivatives
Assets
Derivatives	79	183
Designated hedge derivatives | Short-term investments
Assets
Derivatives	2	6
Designated hedge derivatives | Other current assets
Assets
Derivatives	77	177
Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(19)	(14)
Foreign Exchange Contracts
Assets
Derivatives	150	282
Liabilities
Derivatives	(72)	(98)
Foreign Exchange Contracts | Non-designated hedge derivatives
Assets
Derivatives	71	99
Foreign Exchange Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	11	14
Foreign Exchange Contracts | Non-designated hedge derivatives | Other current assets
Assets
Derivatives	60	85
Foreign Exchange Contracts | Non-designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(53)	(84)
Foreign Exchange Contracts | Designated hedge derivatives
Assets
Derivatives	79	183
Foreign Exchange Contracts | Designated hedge derivatives | Short-term investments
Assets
Derivatives	2	6
Foreign Exchange Contracts | Designated hedge derivatives | Other current assets
Assets
Derivatives	77	177
Foreign Exchange Contracts | Designated hedge derivatives | Other current liabilities
Liabilities
Derivatives	(19)	(14)
Equity Contracts
Assets
Derivatives	143	162
Liabilities
Derivatives	(8)	(19)
Equity Contracts | Non-designated hedge derivatives
Assets
Derivatives	143	162
Equity Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	143	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	(8)	(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	20	10
Liabilities
Derivatives	(9)	(17)
Interest-Rate Contracts | Non-designated hedge derivatives
Assets
Derivatives	20	10
Interest-Rate Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	20	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	(9)	(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	14	26
Liabilities
Derivatives	(16)	(21)
Credit Contracts | Non-designated hedge derivatives
Assets
Derivatives	14	26
Credit Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	14	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	(16)	(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	2	3
Liabilities
Derivatives	(2)	0
Commodity Contracts | Non-designated hedge derivatives
Assets
Derivatives	2	3
Commodity Contracts | Non-designated hedge derivatives | Short-term investments
Assets
Derivatives	2	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	(2)	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