Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014
Preferred shares, No Par Value
Preferred shares, Authorized	0.5us-gaap_PreferredStockSharesAuthorized	0.5us-gaap_PreferredStockSharesAuthorized
Preferred shares, Issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common shares, No Par Value
Common shares, Authorized	755us-gaap_CommonStockSharesAuthorized	755us-gaap_CommonStockSharesAuthorized
Common shares, Issued	364us-gaap_CommonStockSharesIssued	364us-gaap_CommonStockSharesIssued
Common shares in treasury	0us-gaap_TreasuryStockShares	27us-gaap_TreasuryStockShares

Face amount per share of no-par value common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

+ References

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

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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