Pension and Other Postretirement Benefits (Details 3) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Pension Plans
Plans with projected benefit obligation in excess of plan assets
Projected benefit obligation	$ 1,217.9	$ 929.2
Fair value of plan assets	770.6	710.2
Plans with accumulated benefit obligations in excess of plan assets
Accumulated benefit obligation	1,112.0	859.2
Fair value of plan assets	770.6	710.2
Other Postretirement Plans
Plans with projected benefit obligation in excess of plan assets
Projected benefit obligation	282.2	204.2
Fair value of plan assets	85.3	80.3
Plans with accumulated benefit obligations in excess of plan assets
Accumulated benefit obligation	282.2	204.2
Fair value of plan assets	$ 85.3	$ 80.3

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details

- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details