Business Acquisitions (Details) $ / shares in Units, € in Millions													1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
		Mar. 01, 2016 USD ($)		Jan. 22, 2016 USD ($)		Dec. 15, 2015 USD ($)	Sep. 15, 2015 USD ($)	Sep. 15, 2015 EUR (€)	Aug. 28, 2015 USD ($)	May. 12, 2015 USD ($)	Mar. 30, 2015 USD ($) $ / shares shares	Mar. 30, 2015 EUR (€) shares	May. 31, 2015 USD ($)	Apr. 02, 2016 USD ($)	Mar. 28, 2015 USD ($)	Dec. 31, 2015 USD ($)		Jun. 27, 2015 USD ($) shares	Nov. 08, 2013 USD ($)
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue														$ 1,386,500,000	$ 1,377,300,000
Business Combination, Contingent Consideration, Liability							$ 0
Finite-Lived Intangible Asset, Useful Life														20 years
Research and Development Expense														$ 45,300,000	35,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	[1]	$ 0
Goodwill		500,000	[1]											5,281,200,000		$ 5,364,900,000
Intangible assets subject to amortization, gross														10,004,900,000		9,512,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						$ 0	0		$ 0		$ 3,374,800,000					29,200,000	[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets						0	0		0
Intangible assets not subject to amortization														1,751,800,000		1,916,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net											2,983,200,000					29,200,000	[2]
Senior Notes														5,937,100,000		4,698,300,000			$ 2,300,000,000
Proceeds from Issuance or Sale of Equity																		$ 999,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets											5,924,900,000					29,200,000	[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable											243,100,000					0	[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, short term debt						0	0		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued payroll						0	0		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued customer programs						0	0		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt						0	0		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities						0	0		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities											$ 2,941,700,000					0	[2]
Operating Income (Loss)														(303,800,000)	199,200,000
Business Acquisition, Pro Forma Net Income (Loss)														(333,100,000)	(75,400,000)
Tretinoin [Member]
Business Acquisition [Line Items]
Sales Revenue, Goods, Net														15,900,000
Business Combination, Consideration Transferred	[1]			$ 416,400,000
Payments to Acquire Businesses, Gross				416,400,000	[1]											416,400,000
Business Combination, Contingent Consideration, Liability	[1]			0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	[1]			1,400,000
Goodwill	[1]			1,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[1]			413,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	[1]			$ 416,400,000
Business Acquisition, Effective Date of Acquisition				Jan. 22, 2016
Operating Income (Loss)														11,400,000
Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	[1]	29,500,000
Payments to Acquire Businesses, Gross	[1]	0
Business Combination, Contingent Consideration, Liability	[1]	29,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[1]	29,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	[1]	$ 29,500,000
Business Acquisition, Effective Date of Acquisition		Mar. 01, 2016
ScarAway [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred									26,700,000
Payments to Acquire Businesses, Gross									26,700,000
Business Combination, Contingent Consideration, Liability									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory									1,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment									0
Goodwill									3,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									22,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									$ 26,700,000
Business Acquisition, Effective Date of Acquisition									Aug. 28, 2015
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents									$ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets									26,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities									0
Entocort [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred						380,200,000
Payments to Acquire Businesses, Gross						380,200,000
Business Combination, Contingent Consideration, Liability						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory						200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment						0
Goodwill						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						380,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net						$ 380,200,000
Business Acquisition, Effective Date of Acquisition						Dec. 15, 2015
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents						$ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets						380,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent						0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities						0
Naturwohl Pharma [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred							150,400,000
Payments to Acquire Businesses, Gross							150,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory							1,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets							0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment							0
Goodwill							61,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							111,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							$ 150,400,000
Business Acquisition, Effective Date of Acquisition							Sep. 15, 2015	Sep. 15, 2015
Business Acquisition, Percentage of Voting Interests Acquired							100.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents							$ 4,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables							3,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets							182,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable							2,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities							1,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent							27,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities							31,800,000
GSK [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred									223,600,000
Payments to Acquire Businesses, Gross									223,600,000
Business Combination, Contingent Consideration, Liability									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment									0
Goodwill									32,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									191,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									$ 223,600,000
Business Acquisition, Effective Date of Acquisition									Aug. 28, 2015
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents									$ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets									223,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent									0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities									$ 0
Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred										$ 37,900,000
Payments to Acquire Businesses, Gross										37,900,000
Business Combination, Contingent Consideration, Liability										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory										7,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets										2,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment										6,000,000
Goodwill										6,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										11,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets										400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net										$ 37,900,000
Business Acquisition, Effective Date of Acquisition										May 12, 2015
Business Acquisition, Percentage of Voting Interests Acquired										100.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents										$ 4,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables										7,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets										44,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable										3,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, short term debt										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities										1,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued payroll										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued customer programs										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent										1,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities										400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities										6,700,000
Omega [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs															278,900,000
Shares, Issued | shares											5,400,000
Business Combination, Consideration Transferred											$ 2,983,200,000
Payments to Acquire Businesses, Gross											2,983,200,000
Business Combination, Contingent Consideration, Liability											0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory											202,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets											39,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment											130,800,000
Goodwill											1,900,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets											$ 2,400,000
Business Acquisition, Effective Date of Acquisition											Mar. 30, 2015	Mar. 30, 2015
Business Acquisition, Percentage of Voting Interests Acquired											95.77%
Shares, Outstanding | shares											685,348,257
Treasury Stock, Shares, Acquired | shares											30,243,983	30,243,983
Business Acquisition, Share Price | $ / shares											$ 167.64
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned											$ 904,900,000
Business Acquisition, Cash Exchange											2,078,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents											14,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables											260,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, short term debt											24,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities											43,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued payroll											51,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued customer programs											39,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt											1,471,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent											1,014,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities																53,500,000
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business acquisitions, number of products purchased																8
Business Combination, Consideration Transferred	[2]															29,200,000
Payments to Acquire Businesses, Gross	[2]															15,300,000
Business Combination, Contingent Consideration, Liability	[2]															13,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	[2]															0
Goodwill	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, short term debt	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued payroll	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued customer programs	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	[2]															0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	[2]															0
Developed Technology Rights [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross							$ 0							1,795,700,000		1,383,500,000
Developed Technology Rights [Member] | Tretinoin [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life				20 years
Intangible assets subject to amortization, gross	[1]			$ 411,000,000
Developed Technology Rights [Member] | Development stage rx products [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross	[1]	$ 0
Developed Technology Rights [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									8 years
Intangible assets subject to amortization, gross									$ 500,000
Developed Technology Rights [Member] | Entocort [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross						380,000,000
Developed Technology Rights [Member] | GSK [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross									$ 0
Developed Technology Rights [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross										0
Developed Technology Rights [Member] | Omega [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross																27,200,000
Developed Technology Rights [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross	[2]															0
Non-compete agreements [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross														17,600,000		15,200,000
Non-compete agreements [Member] | Tretinoin [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life				5 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[1]			$ 2,300,000
Non-compete agreements [Member] | Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[1]	0
Non-compete agreements [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									4 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									$ 500,000
Non-compete agreements [Member] | Entocort [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						0
Non-compete agreements [Member] | Naturwohl Pharma [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life							3 years	3 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							$ 300,000
Non-compete agreements [Member] | GSK [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									0
Non-compete agreements [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										0
Non-compete agreements [Member] | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles											$ 0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life											3 years	3 years
Non-compete agreements [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[2]															0
Non-solicit agreement [Member] | Omega [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life											2 years	2 years
Licensing Agreements [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross														6,054,800,000		6,053,400,000
Licensing Agreements [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									0
Licensing Agreements [Member] | Entocort [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						0
Licensing Agreements [Member] | Naturwohl Pharma [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life							3 years	3 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							$ 21,400,000
Licensing Agreements [Member] | GSK [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									$ 0
Licensing Agreements [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										$ 0
Licensing Agreements [Member] | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles											$ 0
Licensing Agreements [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[2]															0
Trademarks and Trade Names [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									25 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									$ 11,400,000
Trademarks and Trade Names [Member] | Entocort [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						0
Trademarks and Trade Names [Member] | Naturwohl Pharma [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life							20 years	20 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							$ 64,200,000
Trademarks and Trade Names [Member] | GSK [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									20 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									$ 129,500,000
Trademarks and Trade Names [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life										25 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										$ 0
Trademarks and Trade Names [Member] | Omega [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life											8 years	8 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles											$ 287,500,000
Trademarks and Trade Names [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[2]															0
Brands [Member] | Omega [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life											22 years	22 years
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization, gross														1,573,200,000		1,520,700,000
Customer Relationships [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									15 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									$ 9,800,000
Customer Relationships [Member] | Entocort [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						0
Customer Relationships [Member] | Naturwohl Pharma [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life							15 years	15 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							$ 25,900,000
Customer Relationships [Member] | GSK [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									15 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									$ 61,500,000
Customer Relationships [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life										20 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										$ 6,600,000
Customer Relationships [Member] | Omega [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life											21 years	21 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles											$ 1,056,300,000
Customer Relationships [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[2]															0
Trademarks and Trade Names [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										4,400,000
Trademarks and Trade Names [Member] | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles																2,003,800,000
Trademarks and Trade Names [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[2]															0
In-process research and development [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization		$ 29,000,000	[1]	$ 0	[1]									$ 69,500,000		48,200,000
In-process research and development [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization									0
In-process research and development [Member] | Entocort [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization						$ 0
In-process research and development [Member] | Naturwohl [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization							$ 0
In-process research and development [Member] | GSK [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization									0
In-process research and development [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization										0
In-process research and development [Member] | Omega [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization											$ 0
In-process research and development [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Intangible assets not subject to amortization	[2]															$ 29,200,000
Minimum [Member] | Developed Technology Rights [Member] | Entocort [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life						10 years
Minimum [Member] | Developed Technology Rights [Member] | Omega [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life											4 years	4 years
Maximum [Member] | Omega [Member]
Business Acquisition [Line Items]
Indemnification available from acquired company's sellers | €												€ 277.0
Maximum [Member] | Developed Technology Rights [Member] | Entocort [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life						15 years
Maximum [Member] | Developed Technology Rights [Member] | Omega [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life											13 years	13 years
Euro Member Countries, Euro | Naturwohl Pharma [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross | €								€ 133.5
Euro Member Countries, Euro | GSK [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross									$ 200,000,000
Euro Member Countries, Euro | Maximum [Member] | Omega [Member]
Business Acquisition [Line Items]
Indemnification available from acquired company's sellers											$ 248,000,000
Inventories [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory										600,000
Inventories [Member] | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory											15,100,000
Property, Plant and Equipment [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment										$ 900,000
Property, Plant and Equipment [Member] | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment											41,500,000
Long-term Debt [Member] | Omega [Member]
Business Acquisition [Line Items]
Business combination fair value adjustment											$ 101,900,000
2014 bonds
Business Acquisition [Line Items]
Senior Notes																		$ 1,600,000,000
Common Stock [Member]
Business Acquisition [Line Items]
Stock Issued During Period, Shares, New Issues | shares																		6,800,000
Administration | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs															2,000,000
Interest expense, net | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs															18,700,000
Other expense, net | Omega [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs															$ 258,200,000
contractual arrangement [Member]
Business Acquisition [Line Items]
Research and Development Expense													$ 18,000,000

[1] * Opening balance sheet is preliminary

[2] Consists of eight product acquisitions in our CHC, BCH and Rx segments.