Pension And Other Postretirement Benefits (Weighted-Average Asset Allocations By Asset Category) (Details)	Jun. 30, 2011	Jun. 30, 2010
Pension And Other Postretirement Benefits
Equity securities	66.10%	49.10%
Fixed income securities	32.30%	33.00%
Cash and cash equivalents	1.60%	17.90%
Total	100.00%	100.00%

The aggregate percentage of the fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of total plan assets held as of the measurement date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(1)

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Data Type:	us-types:percentItemType
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