Consolidated Statements of Net Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net sales	$ 2,174.1us-gaap_SalesRevenueGoodsNet	$ 2,295.8us-gaap_SalesRevenueGoodsNet
Cost of sales	(1,750.8)us-gaap_CostOfGoodsSold	(1,850.5)us-gaap_CostOfGoodsSold
Gross profit	423.3us-gaap_GrossProfit	445.3us-gaap_GrossProfit
Selling, general and administrative expenses	(100.6)	(102.5)
Research, development and engineering expenses, net	(126.5)	(142.2)
Amortization of intangibles	(3.7)us-gaap_AmortizationOfIntangibleAssets	(4.1)us-gaap_AmortizationOfIntangibleAssets
Other income (expense), net	(112.5)us-gaap_OtherOperatingIncomeExpenseNet	(4.8)us-gaap_OtherOperatingIncomeExpenseNet
Operating income	80.0us-gaap_OperatingIncomeLoss	191.7us-gaap_OperatingIncomeLoss
Income from equity method investments	1.3	1.7
Interest income	0.4us-gaap_InterestIncomeOther	1.2us-gaap_InterestIncomeOther
Interest expense	(17.1)us-gaap_InterestExpense	(8.0)us-gaap_InterestExpense
Other non-operating items, net	(0.1)us-gaap_OtherNonoperatingIncomeExpense	(2.3)us-gaap_OtherNonoperatingIncomeExpense
Income before income taxes	64.5	184.3
Income tax expense	(28.8)us-gaap_IncomeTaxExpenseBenefit	(53.2)us-gaap_IncomeTaxExpenseBenefit
Net income	35.7us-gaap_ProfitLoss	131.1us-gaap_ProfitLoss
Less: Net income attributable to non-controlling interest	0	0.8
Net income attributable to controlling interest	$ 35.7us-gaap_NetIncomeLoss	$ 130.3us-gaap_NetIncomeLoss
Net earnings per share - basic	$ 0.40us-gaap_EarningsPerShareBasic	$ 1.39us-gaap_EarningsPerShareBasic
Net earnings per share - diluted	$ 0.40us-gaap_EarningsPerShareDiluted	$ 1.38us-gaap_EarningsPerShareDiluted
Weighted average number of shares outstanding, net of treasury shares (in millions)	88.4	94.0
Weighted average number of shares outstanding, assuming dilution and net of treasury shares (in millions)	88.6	94.3
Number of shares outstanding, excluding dilution and net of treasury shares (in millions)	88.0us-gaap_CommonStockSharesOutstanding	93.7us-gaap_CommonStockSharesOutstanding
Cash dividend per share - declared	$ 0.56	$ 0.52
Cash dividend per share - paid	$ 0.54	$ 0.52

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use, and costs incurred for engineering reduced by royalty income and income from contracts to perform engineering design and product development services.

No definition available.