Financial Instruments (Schedule of the Fair Value of Assets and Liabilities Related to Derivatives Designated as Hedging Instruments) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Derivatives, Fair Value [Line Items]
Document Period End Date	Jun. 30, 2017
Total assets	$ 3	$ 35
Total liabilities	24	16
Designated as Hedging Instrument | Cash Flow Hedging | Foreign Currency Contracts | Prepaid Expenses and Other
Derivatives, Fair Value [Line Items]
Total assets	3	1
Designated as Hedging Instrument | Cash Flow Hedging | Foreign Currency Contracts | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	2	3
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swaps | Deferred Income Taxes and Other Liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	0	10
Designated as Hedging Instrument | Cash Flow Hedging | Commodity Contracts | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	1	2
Designated as Hedging Instrument | Cash Flow Hedging | Commodity Contracts | Deferred Income Taxes and Other Liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	0	1
Designated as Hedging Instrument | Fair Value Hedging | Interest Rate Swaps | Prepaid Expenses and Other
Derivatives, Fair Value [Line Items]
Total assets	0	1
Designated as Hedging Instrument | Fair Value Hedging | Interest Rate Swaps | Other Assets
Derivatives, Fair Value [Line Items]
Total assets	0	33
Designated as Hedging Instrument | Fair Value Hedging | Interest Rate Swaps | Deferred Income Taxes and Other Liabilities
Derivatives, Fair Value [Line Items]
Total liabilities	$ 19	$ 0