Fair Values of Derivative Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Jun. 30, 2015
Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 186	$ 244
Net amount, assets	(34)	60
Short-term Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	74	126
Gross amounts of derivatives offset in the balance sheet, assets	(108)	(66)
Net amounts presented in the balance sheet, assets	(34)	60
Gross amounts of derivatives not offset in the balance sheet, assets	0	0
Cash collateral received, assets	0	0
Short-term Investments | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	169	188
Short-term Investments | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	19	17
Short-term Investments | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	135	148
Short-term Investments | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	5	7
Short-term Investments | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	9	16
Short-term Investments | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	1	0
Short-term Investments | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	17	56
Short-term Investments | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	17	56
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	741	719
Net amount, assets	628	648
Other Current Assets | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	741	719
Gross amounts of derivatives offset in the balance sheet, assets	(113)	(71)
Net amounts presented in the balance sheet, assets	628	648
Gross amounts of derivatives not offset in the balance sheet, assets	0	0
Cash collateral received, assets	0	0
Other Current Assets | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	109	167
Other Current Assets | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	109	167
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	632	552
Other Current Assets | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	632	552
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	10	25
Net amount, assets	0	0
Equity and Other Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	10	25
Gross amounts of derivatives offset in the balance sheet, assets	(10)	(25)
Net amounts presented in the balance sheet, assets	0	0
Gross amounts of derivatives not offset in the balance sheet, assets	0	0
Cash collateral received, assets	0	0
Equity and Other Investments | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Assets	10	25
Equity and Other Investments | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Equity and Other Investments | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	10	25
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(271)	(218)
Net amount, liabilities	(368)	(513)
Other Current Liabilities | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(269)	(218)
Gross amounts of derivatives offset in the balance sheet, liabilities	231	161
Net amounts presented in the balance sheet, liabilities	(38)	(57)
Gross amounts of derivatives not offset in the balance sheet, liabilities	0	0
Cash collateral received, liabilities	(330)	(456)
Other Current Liabilities | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(185)	(118)
Other Current Liabilities | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(141)	(79)
Other Current Liabilities | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(21)	(18)
Other Current Liabilities | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(15)	(12)
Other Current Liabilities | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(7)	(9)
Other Current Liabilities | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(1)	0
Other Current Liabilities | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(86)	(100)
Other Current Liabilities | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(57)	(31)
Other Current Liabilities | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ (29)	$ (69)