Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) shares in Millions			12 Months Ended
	Jan. 01, 2019	Aug. 05, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 15, 2008
Accounting Policies [Line Items]
Finite-lived intangible asset, estimated useful life, in years			15 years	15 years
Weighted average ordinary shares issued to settle warrants				17.0
Weighted average number diluted shares outstanding adjustment, stock-based awards and warrants						4.9
Share repurchased during period, shares				12.4
Share repurchased during period, value			$ 432,000,000	$ 500,200,000
Anti-dilutive securities excluded from computation of earnings per share			8.9	8.5	7.8
Convertible Debt | Cash Convertible Notes
Accounting Policies [Line Items]
Aggregate principal amount							$ 575,000,000
Minimum
Accounting Policies [Line Items]
Finite-lived intangible asset, estimated useful life, in years			3 years
Maximum
Accounting Policies [Line Items]
Finite-lived intangible asset, estimated useful life, in years			20 years
Repurchase authorization, value			up to $1 billion
Machinery and equipment | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, estimated service life (years)			3 years
Machinery and equipment | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, estimated service life (years)			18 years
Buildings and improvements | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, estimated service life (years)			15 years
Buildings and improvements | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, estimated service life (years)			39 years
Capitalized software | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, estimated service life (years)			3 years
Capitalized software | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, estimated service life (years)			7 years
Meda AB
Accounting Policies [Line Items]
Consideration transferred, shares		26.4
Weighted average number diluted shares outstanding adjustment, stock-based awards and warrants			10.8
Scenario, Forecast | Accounting Standards Update 2018-20 [Member] | Initial Right-of-use Asset [Member] | Minimum
Accounting Policies [Line Items]
Effect of new accounting pronouncement	$ 220
Scenario, Forecast | Accounting Standards Update 2018-20 [Member] | Initial Right-of-use Asset [Member] | Maximum
Accounting Policies [Line Items]
Effect of new accounting pronouncement	260
Scenario, Forecast | Accounting Standards Update 2018-20 [Member] | Lease Liability [Member] | Minimum
Accounting Policies [Line Items]
Effect of new accounting pronouncement	220
Scenario, Forecast | Accounting Standards Update 2018-20 [Member] | Lease Liability [Member] | Maximum
Accounting Policies [Line Items]
Effect of new accounting pronouncement	260
Receivables Facility [Member]
Accounting Policies [Line Items]
Accounts receivable securitization facility maximum borrowing capacity			$ 400,000,000
Retained Earnings [Member] | Scenario, Forecast | Accounting Standards Update 2018-20 [Member]
Accounting Policies [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 6,600,000