Balance Sheet Information - Equity Method Investment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2009	Dec. 31, 2011 NSK Warner [Member]	Dec. 31, 2010 NSK Warner [Member]	Dec. 31, 2009 NSK Warner [Member]	Dec. 31, 2011 Equity Method Investee [Member] NSK Warner [Member]	Dec. 31, 2010 Equity Method Investee [Member] NSK Warner [Member]	Dec. 31, 2009 Equity Method Investee [Member] NSK Warner [Member]	Nov. 30, 2011 Equity Method Investee [Member] NSK Warner [Member]	Nov. 30, 2010 Equity Method Investee [Member] NSK Warner [Member]
Schedule of Equity Method Investments [Line Items]
Equity investment in NSK Warner, percent				50.00%
Joint Venture Partner Interest In Subsidiary				40.00%
Equity Method Investment, Dividends or Distributions				$ 33.4	$ 35.5	$ 48.0
Equity Method Investment, Summarized Financial Information [Abstract]
Cash and securities	119.4	109.1
Current assets, including cash and securities	344.1	310.2
Non-current assets	182.0	174.9
Current liabilities	172.1	151.4
Non-current liabilities	45.3	41.9
Total equity	308.7	291.8
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Net sales	655.2	634.7	494.5
Gross profit	128.5	131.9	89.2
Net Income	61.6	68.3	35.8
Purchases from Equity Method Investee							16.6	14.6	16.5
Owed to NSK										$ 0	$ 0