Acquisitions (Summary of Purchase Price Allocation) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Aug. 02, 2011 VAC [Member]
Business Acquisition [Line Items]
Accounts receivable			$ 81.0
Inventories			362.8
Property, plant and equipment			244.1
Identifiable intangible assets			307.5
Other assets			35.0
Total assets acquired			1,030.4
Accounts payable			43.5
Deferred income taxes			184.9
Pension liabilities	214.6	212.5	149.8
Other liabilities			60.8
Total liabilities assumed			439.0
Net assets acquired			591.4
Purchase price, net of cash acquired			812.2
Goodwill			$ 220.8