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Fair Value Measurements (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - Recurring - USD ($) $ in Millions | Dec. 31, 2018 | Jun. 30, 2018
--- | --- | ---
Assets: |  |
Cash equivalents |  | $ 200
Other investments | $ 106 | 117
Liabilities: |  |
Forward contracts | (30) | (76)
Level 1 |  |
Assets: |  |
Cash equivalents |  | 200
Other investments | 106 | 117
Liabilities: |  |
Forward contracts | 0 | 0
Level 2 |  |
Assets: |  |
Cash equivalents |  | 0
Other investments | 0 | 0
Liabilities: |  |
Forward contracts | (30) | (76)
Level 3 |  |
Assets: |  |
Cash equivalents |  | 0
Other investments | 0 | 0
Liabilities: |  |
Forward contracts | $ 0 | $ 0

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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