Financial Instruments (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) derivative	Dec. 31, 2015 USD ($)
Derivative [Line Items]
Number of instruments | derivative	155
Deferred gains to be reclassified in next 12 months	$ 6,200,000
Potential effect of rights to offset associated with foreign exchange and interest rate swap	1,700,000
Derivative asset	16,300,000
Derivative liability	6,600,000
Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value	4,400,000
Derivative liability, fair value	1,400,000
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value	18,000,000
Derivative liability, fair value	8,300,000
Foreign exchange contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	78,700,000
Derivative asset, fair value	4,200,000	$ 0
Amount of net gains/(losses) recognized in OCI	14,600,000	0
Foreign exchange contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	1,309,100,000	645,200,000
Interest Rate Swap | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	5,100,000,000
Baxalta | Foreign exchange contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	776,400,000
Derivative asset, fair value	6,700,000	0
Baxalta | Cash Flow Hedging | Foreign exchange contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	11,200,000
Baxalta | Fair Value Hedging | Interest Rate Swap | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	1,000,000,000
Other Noncurrent Assets | Interest rate contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value	1,100,000	0
Interest expense | Interest rate contracts
Derivative [Line Items]
Amount of losses recognized in income	3,200,000	0
Interest expense | Interest rate contracts | Designated as Hedging Instrument
Derivative [Line Items]
Amount of net gains/(losses) recognized in OCI	(6,000,000)	0
Interest expense | Interest rate contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Amount of losses recognized in income	$ 3,200,000	$ 0