Fair Values of Derivative Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Jun. 30, 2016
Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 348	$ 73
Net amount, assets	346	(5)
Short-term Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	348	69
Gross amounts of derivatives offset on the balance sheet, assets	(2)	(74)
Net amounts presented on the balance sheet, assets	346	(5)
Gross amounts of derivatives not offset on 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	55	72
Short-term Investments | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	23	33
Short-term Investments | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	20	23
Short-term Investments | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	5	10
Short-term Investments | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	6	6
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	293	1
Short-term Investments | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	293	1
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	772	548
Net amount, assets	545	246
Other Current Assets | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	772	548
Gross amounts of derivatives offset on the balance sheet, assets	(227)	(302)
Net amounts presented on the balance sheet, assets	545	246
Gross amounts of derivatives not offset on 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	229	156
Other Current Assets | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	229	156
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	543	392
Other Current Assets | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	543	392
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	1	18
Net amount, assets	(24)	(7)
Equity and Other Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	1	18
Gross amounts of derivatives offset on the balance sheet, assets	(25)	(25)
Net amounts presented on the balance sheet, assets	(24)	(7)
Gross amounts of derivatives not offset on 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	1	18
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	1	18
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(276)	(630)
Net amount, liabilities	(573)	(482)
Other Current Liabilities | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(275)	(630)
Gross amounts of derivatives offset on the balance sheet, liabilities	251	398
Net amounts presented on the balance sheet, liabilities	(24)	(232)
Gross amounts of derivatives not offset on the balance sheet, liabilities	(1)	0
Cash collateral received, liabilities	(548)	(250)
Other Current Liabilities | Non-designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(250)	(342)
Other Current Liabilities | Non-designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(238)	(296)
Other Current Liabilities | Non-designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(4)	(16)
Other Current Liabilities | Non-designated Hedge Derivatives | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(5)	(25)
Other Current Liabilities | Non-designated Hedge Derivatives | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(3)	(5)
Other Current Liabilities | Non-designated Hedge Derivatives | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0	0
Other Current Liabilities | Designated Hedge Derivatives
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(26)	(288)
Other Current Liabilities | Designated Hedge Derivatives | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0	(263)
Other Current Liabilities | Designated Hedge Derivatives | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ (26)	$ (25)