Fair Values of Derivative Instruments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013
Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 333	$ 247
Net amount, assets	124	33
Short-term Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	187	105
Gross amounts offset in the balance sheet, assets	(63)	(72)
Net amounts presented in the balance sheet, assets	124	33
Gross amounts not offset in the balance sheet, assets	0	0
Short-term Investments | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	247	238
Short-term Investments | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	33	41
Short-term Investments | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	166	157
Short-term Investments | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	19	18
Short-term Investments | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	25	19
Short-term Investments | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	4	3
Short-term Investments | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	86	9
Short-term Investments | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	86	9
Short-term Investments | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	171	254
Net amount, assets	119	245
Other Current Assets | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	171	254
Gross amounts offset in the balance sheet, assets	(52)	(9)
Net amounts presented in the balance sheet, assets	119	245
Gross amounts not offset in the balance sheet, assets	0	0
Other Current Assets | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	81	87
Other Current Assets | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	81	87
Other Current Assets | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Other Current Assets | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Other Current Assets | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Other Current Assets | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Other Current Assets | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	90	167
Other Current Assets | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	90	167
Other Current Assets | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	35
Net amount, assets	0
Equity and Other Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	35
Gross amounts offset in the balance sheet, assets	(35)
Net amounts presented in the balance sheet, assets	0
Gross amounts not offset in the balance sheet, assets	0
Equity and Other Investments | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	35
Equity and Other Investments | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Equity and Other Investments | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	35
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(158)	(135)
Net amount, liabilities	(15)	(17)
Other Current Liabilities | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(151)	(97)
Gross amounts offset in the balance sheet, liabilities	136	80
Net amounts presented in the balance sheet, liabilities	(15)	(17)
Gross amounts not offset in the balance sheet, liabilities	0	0
Other Current Liabilities | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(112)	(135)
Other Current Liabilities | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(67)	(63)
Other Current Liabilities | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(17)	(9)
Other Current Liabilities | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(10)	(45)
Other Current Liabilities | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(17)	(17)
Other Current Liabilities | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(1)	(1)
Other Current Liabilities | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(46)	0
Other Current Liabilities | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(1)	0
Other Current Liabilities | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(45)	0
Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(26)
Net amount, liabilities	(12)
Other Long-term Liabilities | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(26)
Gross amounts offset in the balance sheet, liabilities	14
Net amounts presented in the balance sheet, liabilities	(12)
Gross amounts not offset in the balance sheet, liabilities	0
Other Long-term Liabilities | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(26)
Other Long-term Liabilities | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Other Long-term Liabilities | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ (26)