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New Accoutning Pronouncements and Policies (Additional Information) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2011
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Dec. 31, 2010
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| New Accounting Pronouncements and Policies [Abstract] | ||||
| Net Income (Loss) Attributable to Noncontrolling Interest | $ 23 | $ 29 | $ 56 | $ 68 |
| Payments of Dividends, Noncontrolling Interest | $ 47 | |||