CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) In Millions, unless otherwise specified	Dec. 31, 2011	Jun. 30, 2011
SHAREHOLDERS' EQUITY
Common stock, shares issued	4,008.2	4,007.9

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.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant