Pensions and Postretirement Benefits Other than Pensions (Narrative) (Details) (USD $) In Millions	9 Months Ended	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Company contributions	$ 45.3	$ 286.1
Healthcare Reform legislation net actuarial gain			41.1
Hussmann Divestiture [Member]
Disposal Group, Including Discontinued Operation, Pension Plan Benefit Obligation	39.7
Pension Plan Accumulated Other Comprehensive Income Before Tax	95.3
Disposal Group, Including Discontinued Operation, Postretirement Plan Benefit Obligation	12.0
Postretirement Plan Accumulated Other Comprehensive Income Before Tax	$ 1.0

The accumulated change in the value of either the projected benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost, after tax.

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+ Details