Fair Values of Derivative Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Jun. 30, 2016
Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 42	$ 73
Net amount, assets	(20)	(5)
Short-term Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	40	69
Gross amounts of derivatives offset on the balance sheet, assets	(60)	(74)
Net amounts presented on the balance sheet, assets	(20)	(5)
Gross amounts of derivatives not offset on the balance sheet, assets	0	0
Cash collateral received, assets	0	0
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	422	548
Net amount, assets	316	246
Other Current Assets | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	422	548
Gross amounts of derivatives offset on the balance sheet, assets	(106)	(302)
Net amounts presented on the balance sheet, assets	316	246
Gross amounts of derivatives not offset on the balance sheet, assets	0	0
Cash collateral received, assets	0	0
Equity and Other Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	82	18
Net amount, assets	(4)	(7)
Equity and Other Investments | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	82	18
Gross amounts of derivatives offset on the balance sheet, assets	(86)	(25)
Net amounts presented on the balance sheet, assets	(4)	(7)
Gross amounts of derivatives not offset on the balance sheet, assets	0	0
Cash collateral received, assets	0	0
Other Long-term Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	87
Net amount, assets	69
Other Long-term Assets | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Assets	87
Gross amounts of derivatives offset on the balance sheet, assets	(18)
Net amounts presented on the balance sheet, assets	69
Gross amounts of derivatives not offset on the balance sheet, assets	0
Cash collateral received, assets	0
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(320)	(630)
Net amount, liabilities	(372)	(482)
Other Current Liabilities | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(320)	(630)
Gross amounts of derivatives offset on the balance sheet, liabilities	208	398
Net amounts presented on the balance sheet, liabilities	(112)	(232)
Gross amounts of derivatives not offset on the balance sheet, liabilities	0	0
Cash collateral received, liabilities	(260)	(250)
Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(68)
Net amount, liabilities	(9)
Other Long-term Liabilities | Eligible for Offsetting
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(68)
Gross amounts of derivatives offset on the balance sheet, liabilities	59
Net amounts presented on the balance sheet, liabilities	(9)
Gross amounts of derivatives not offset on the balance sheet, liabilities	0
Cash collateral received, liabilities	0
Non-designated Hedge Derivatives | Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	33	72
Non-designated Hedge Derivatives | Short-term Investments | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	13	33
Non-designated Hedge Derivatives | Short-term Investments | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	6	23
Non-designated Hedge Derivatives | Short-term Investments | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	9	10
Non-designated Hedge Derivatives | Short-term Investments | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	5	6
Non-designated Hedge Derivatives | Short-term Investments | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	75	156
Non-designated Hedge Derivatives | Other Current Assets | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	75	156
Non-designated Hedge Derivatives | Other Current Assets | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Other Current Assets | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Other Current Assets | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Other Current Assets | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Equity and Other Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Equity and Other Investments | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Equity and Other Investments | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Equity and Other Investments | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Equity and Other Investments | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Equity and Other Investments | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Non-designated Hedge Derivatives | Other Long-term Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	6
Non-designated Hedge Derivatives | Other Long-term Assets | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	6
Non-designated Hedge Derivatives | Other Long-term Assets | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Non-designated Hedge Derivatives | Other Long-term Assets | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Non-designated Hedge Derivatives | Other Long-term Assets | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Non-designated Hedge Derivatives | Other Long-term Assets | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Non-designated Hedge Derivatives | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(137)	(342)
Non-designated Hedge Derivatives | Other Current Liabilities | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(117)	(296)
Non-designated Hedge Derivatives | Other Current Liabilities | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(13)	(16)
Non-designated Hedge Derivatives | Other Current Liabilities | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(4)	(25)
Non-designated Hedge Derivatives | Other Current Liabilities | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(2)	(5)
Non-designated Hedge Derivatives | Other Current Liabilities | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(1)	0
Non-designated Hedge Derivatives | Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(13)
Non-designated Hedge Derivatives | Other Long-term Liabilities | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(13)
Non-designated Hedge Derivatives | Other Long-term Liabilities | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Non-designated Hedge Derivatives | Other Long-term Liabilities | Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Non-designated Hedge Derivatives | Other Long-term Liabilities | Credit Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Non-designated Hedge Derivatives | Other Long-term Liabilities | Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Designated Hedge Derivatives | Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	9	1
Designated Hedge Derivatives | Short-term Investments | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	9	1
Designated Hedge Derivatives | Short-term Investments | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Designated Hedge Derivatives | Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	347	392
Designated Hedge Derivatives | Other Current Assets | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	347	392
Designated Hedge Derivatives | Other Current Assets | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Designated Hedge Derivatives | Equity and Other Investments
Derivatives, Fair Value [Line Items]
Derivative Assets	82	18
Designated Hedge Derivatives | Equity and Other Investments | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Designated Hedge Derivatives | Equity and Other Investments | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	82	18
Designated Hedge Derivatives | Other Long-term Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	81
Designated Hedge Derivatives | Other Long-term Assets | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	81
Designated Hedge Derivatives | Other Long-term Assets | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Designated Hedge Derivatives | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(183)	(288)
Designated Hedge Derivatives | Other Current Liabilities | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(126)	(263)
Designated Hedge Derivatives | Other Current Liabilities | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(57)	$ (25)
Designated Hedge Derivatives | Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(55)
Designated Hedge Derivatives | Other Long-term Liabilities | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0
Designated Hedge Derivatives | Other Long-term Liabilities | Equity Contracts
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ (55)