The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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+ Details

Subsequent Event (Details) (USD $)			3 Months Ended
Subsequent Event (Details) (USD $)	Jan. 01, 2013	Mar. 31, 2012	Jun. 30, 2012 United States Pension Plans of US Entity, Defined Benefit [Member]	Jun. 30, 2012 Other Pension Plans, Postretirement or Supplemental Plans, Defined Benefit [Member]
Subsequent Event (Textual) [Abstract]
After-tax curtailment gain recognized			$ 7,000,000	$ 1,000,000
Defined contribution plan non elective contribution percent	2.00%
Defined contribution plan contribution match percent	6.00%	3.00%
Defined contribution plan non elective contribution threshold amount		$ 110,000
Defined contribution plan non elective contribution below threshold percent		1.50%
Defined contribution plan non elective contribution above threshold percent		0.50%