Share-Based Compensation and Savings Plans (Schedule of All Stock Option Transactions Under the Plans) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock Options Outstanding at Beginning of Period	15	21
Stock Options Outstanding, Granted	2	3
Stock Options Outstanding, Exercised	(7)	(6)
Stock Options Outstanding, Canceled and forfeited	0	(3)
Stock Options Outstanding at End of Period	10	15
Stock Options Outstanding, Exercisable at End of Period	5
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted-Average Exercise Price [Roll Forward]
Weighted-Average Exercise Price Per Common Share, Outstanding at June 30, 2013	$ 36.97	$ 37.29
Weighted-Average Exercise Price Per Common Share, Granted	$ 51.77	$ 39.81
Weighted-Average Exercise Price Per Common Share, Exercised	$ 38.29	$ 33.19
Weighted-Average Exercise Price Per Common Share, Canceled and forfeited	$ 0.00	$ 46.91
Weighted-Average Exercise Price Per Common Share, Outstanding at December 31, 2013	$ 39.16	$ 36.97
Weighted-Average Exercise Price Per Common Share, Exercisable at December 31, 2013	$ 33.62

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-SubTopic 10

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-Subparagraph (c)(1)(iv)(3)-(4)

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Weighted average price of options that were either forfeited or expired.

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-Publisher FASB

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Gross number of share options (or share units) granted during the period.

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No definition available.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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