Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Current deferred tax assets:
Employee related	$ 28.0		$ 26.2
Net operating loss carryforwards	4.3		9.8
Inventory	14.5		8.6
Warranties	4.5		6.3
Litigation & environmental	0.9		5.8
Customer claims	2.2		2.0
Derivatives	0.6		1.2
Other	5.7		6.8
Total current deferred tax assets	60.7		66.7
Current deferred tax liabilities:
Other	(3.7)		(7.6)
Deferred tax liabilities gross components current	(3.7)		(7.6)
Non-current deferred tax assets:
Foreign tax credits	158.2	[1]	183.4	[1]
Other comprehensive income	116.7		98.0
Research and development capitalization	76.7		49.3
Pension and other post employment benefits	33.9		44.6
Employee related	22.9		20.0
Net operating loss carryforwards	35.1	[1]	15.0	[1]
Research and development credits	3.0		6.3
Warranties	4.7		4.4
Litigation and environmental	2.0		2.6
Other	5.1		8.1
Total non-current deferred tax assets	458.3		431.7
Non-current deferred tax liabilities:
Goodwill & intangibles	(155.5)		(130.3)
Fixed assets	(79.7)		(84.8)
Dividends accrued	(1.3)		(2.8)
Other comprehensive income	(2.9)		(3.0)
Other	(6.6)		(7.7)
Total non-current deferred tax liabilities	246.0		228.6
Total deferred tax items	269.3		262.2
Valuation allowances	(23.6)	[1]	(13.0)	[1]
Net deferred tax asset (current and non-current)	$ 245.7		$ 249.2

[1] Net operating loss carryforwards are shown gross with the corresponding valuation allowances located at the end of the table