Taxation (Deferred Tax Assets and Liabilities, and Valuation Allowances) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Deferred tax assets:
Deferred revenue	$ 5.2		$ 5.5
Inventory & warranty provisions	48.6		52.5
Losses carried forward (including tax credits)	500.6	[1]	425.7	[1]
Provision for sales deductions and doubtful accounts	151.8		144.9
Intangible assets	10.7		36.7
Share-based compensation	25.5		32.7
Excess of tax value over book value of fixed assets	22.1		0
Accruals and provisions	55.1		44.1
Other	2.6		21.6
Gross deferred tax assets	822.2		763.7
Less: valuation allowance	(282.4)		(268.6)
Deferred tax assets, net	539.8		495.1
Deferred tax liabilities:
Intangible assets	(586.8)		(702.7)
Excess of book value over tax value of assets and investments	(56.9)		(36.8)
Net deferred tax liabilities	(103.9)		(244.4)
Net operating losses that result from excess stock based compensation	15.0		6.8
Balance Sheet Classifications
Deferred tax assets - current	315.6		229.9
Deferred tax assets - non-current	141.1		46.5
Deferred tax liabilities - non-current	(560.6)		(520.8)
Valuation Allowance [Line Items]
Valuation Allowances	282.4		268.6
Net increase in valuation allowances	13.8
ValuationAllowanceDeferredTaxAssetExplanationOfChange	The net increase in valuation allowances of $13.8 million includes (i) increases of $104.5 million primarily in respect of losses and other temporary differences in various jurisdictions where management consider that there is insufficient positive evidence in respect of the factors described above to overcome cumulative losses and therefore it is more likely than not that the relevant deferred tax assets will not be realized in full, and (ii) a decrease of $90.7 million primarily in respect of German tax losses ($67.4m), which based on the assessment of the factors described above now provides sufficient positive evidence to support that the losses are more likely than not to be realized. The release of this valuation allowance has been recorded in the current period due to changes in the financing of the German subsidiary.
Ireland
Deferred tax assets:
Less: valuation allowance	(78.8)		(73.9)
Valuation Allowance [Line Items]
Valuation Allowances	78.8		73.9
United States
Deferred tax assets:
Less: valuation allowance	(60.9)		(37.2)
Valuation Allowance [Line Items]
Valuation Allowances	60.9		37.2
Germany
Deferred tax assets:
Less: valuation allowance	(30.8)		(96.9)
Valuation Allowance [Line Items]
Valuation Allowances	30.8		96.9
Other foreign tax jurisdictions
Deferred tax assets:
Less: valuation allowance	(111.9)		(60.6)
Valuation Allowance [Line Items]
Valuation Allowances	$ 111.9		$ 60.6

[1] Excluding $15.0 million of deferred tax assets at December 31, 2013 (2012: $6.8 million), related to the net operating losses that result from excess stock based compensation and for which any benefit realized will be recorded to stockholders’ equity