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Financial Instruments (Schedule of Fair Value Gain Loss Derivative Instrument) (Details) - USD ($) $ in Millions | Jun. 30, 2021 | Jun. 30, 2020
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Fair Value Hedging | Interest Rate Swaps |  |
Derivative [Line Items] |  |
Notional Amount | $ 200 | $ 550
Fair Value Gain/(Loss) | 1 | 27
Cash Flow Hedging | Foreign Currency Contracts |  |
Derivative [Line Items] |  |
Notional Amount | 690 | 653
Fair Value Gain/(Loss) | 1 | (4)
Cash Flow Hedging | Forward Contracts [Member] |  |
Derivative [Line Items] |  |
Notional Amount | 0 | 200
Fair Value Gain/(Loss) | 0 | (16)
Cash Flow Hedging | Currency Swap [Member] |  |
Derivative [Line Items] |  |
Notional Amount | 833 | 833
Fair Value Gain/(Loss) | 40 | 47
Cash Flow Hedging | Commodity Contracts |  |
Derivative [Line Items] |  |
Notional Amount | 0 | 16
Fair Value Gain/(Loss) | $ 0 | $ (1)

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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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