Taxation (Deferred Tax Assets and Liabilities, and Valuation Allowances) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Deferred revenue	$ 16.8	$ 2.4
Inventory & warranty provisions	88.7	36.1
Losses carried forward (including tax credits)	1,907.3	980.3
Provisions for sales deductions and doubtful accounts	191.6	178.0
Intangible assets	79.7	5.9
Share-based compensation	137.5	40.6
Excess of tax value over book value of assets	14.2	0.6
Accruals and provisions	448.6	130.4
Other	78.5	19.3
Gross deferred tax assets	2,962.9	1,393.6
Less: valuation allowance	(569.4)	(416.1)
Deferred tax assets, net	2,393.5	977.5
Deferred tax liabilities:
Intangible assets	(9,073.4)	(2,850.6)
Excess of book value over tax value in inventory	(150.3)	(10.3)
Excess of book value over tax value of assets and investments	(1,304.2)	(153.9)
Other	(91.6)	(47.6)
Net deferred tax liabilities	(8,226.0)	(2,084.9)
Balance sheet classifications:
Deferred tax assets - non-current	96.7	121.0
Deferred tax liabilities - non-current	$ (8,322.7)	$ (2,205.9)