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Consolidated Statements of Shareholders' Equity (Parenthetical) (Stock Options, USD $) In Millions, unless otherwise specified | 12 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012
Stock Options |  |  |
Tax (expense)/benefit associated with employee stock plans | $ 39 | $ (19) | $ (4)

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- Definition Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration