Consolidated Statements of Operations (USD $) In Millions, except Per Share data	12 Months Ended
Mar. 31, 2011	Mar. 31, 2010	Mar. 31, 2009
Consolidated Statements of Operations [Abstract]
Net sales	$ 1,167.0	$ 1,124.6	$ 1,202.6
Cost of goods sold	(775.1)	(708.5)	(813.8)
Gross profit	391.9	416.1	388.8
Selling, general and administrative expenses	(173.4)	(185.8)	(208.8)
Research and development expenses	(28.0)	(27.1)	(23.8)
Asbestos adjustments	(85.8)	(224.2)	17.4
Operating income (loss)	104.7	(21.0)	173.6
Interest expense	(9.0)	(7.7)	(11.2)
Interest income	4.6	3.7	8.2
Other (expense) income	(3.7)	6.3	(14.8)
Income (loss) before income taxes	96.6	(18.7)	155.8
Income tax expense	(443.6)	(66.2)	(19.5)
Net (loss) income	$ (347.0)	$ (84.9)	$ 136.3
Net (loss) income per share - basic	$ (0.80)	$ (0.20)	$ 0.32
Net (loss) income per share - diluted	$ (0.80)	$ (0.20)	$ 0.31
Weighted average common shares outstanding (Millions):
Basic	435.6	433.1	432.3
Diluted	435.6	433.1	434.5

Comprised of changes in actuarial estimates received as of March 31 each year and the effect of foreign exchange movements in the asbestos related assets and liabilities which are denominated in Australian dollars.

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