Business Acquisitions (Details) $ / shares in Units, € in Millions													1 Months Ended	3 Months Ended			6 Months Ended		9 Months Ended				12 Months Ended
		Aug. 05, 2016 USD ($)	Aug. 02, 2016 USD ($)	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 ($)	Oct. 01, 2016 USD ($)		Sep. 26, 2015 USD ($)	Dec. 31, 2015 USD ($)		Oct. 01, 2016 USD ($)		Sep. 26, 2015 USD ($)		Jun. 27, 2015 USD ($) shares	Dec. 02, 2014 USD ($)	Nov. 08, 2013 USD ($)
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired																			$ 432,100,000		$ 2,499,900,000
Proceeds from sale of business																			58,500,000		0
Business Acquisition, Pro Forma Revenue														$ 1,359,600,000		$ 1,429,900,000			4,243,300,000		4,451,400,000
Contingent consideration							$ 0
Research and Development Expense														50,200,000		41,600,000			142,500,000		139,700,000
Goodwill														4,490,600,000			$ 5,364,900,000		4,490,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						$ 0	0		$ 0		$ 3,374,800,000						29,200,000	[1]
In-process research and development														792,100,000			1,916,300,000		792,100,000
Finite-Lived Intangible Assets, Gross														10,138,400,000			9,512,200,000		10,138,400,000
Other non-current assets						0	0		0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net											2,983,200,000						29,200,000	[1]
Senior Notes														5,426,400,000			4,698,300,000		5,426,400,000						$ 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	[1]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable											243,100,000						0	[1]
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	[1]
Operating Income														(1,515,200,000)		188,600,000			(1,580,700,000)	[2]	614,700,000	[2]
Business Acquisition, Pro Forma Net Income (Loss)														(1,254,900,000)		142,000,000			(1,392,800,000)		154,700,000
Impairment of Long-Lived Assets to be Disposed of																	29,000,000		3,400,000
Benzaclin [Member]
Business Acquisition [Line Items]
Purchase price paid			$ 62,000,000
Business Acquisition, Effective Date of Acquisition			Aug. 02, 2016
Business Acquisition, Percentage of Voting Interests Acquired			60.90%
Tretinoin [Member]
Business Acquisition [Line Items]
Sales Revenue, Goods, Net														25,300,000					47,700,000
Business Combination, Consideration Transferred					$ 416,400,000
Purchase price paid					416,400,000
Contingent consideration					0
Inventories					1,400,000
Prepaid expenses and other current assets					0
Property and equipment					0
Goodwill					1,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					413,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net					$ 416,400,000
Business Acquisition, Effective Date of Acquisition					Jan. 22, 2016
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					416,400,000
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, Noncurrent Liabilities, Long-term Debt					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
Operating Income														13,000,000					31,300,000
Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred				$ 24,900,000
Purchase price paid				0
Contingent consideration				24,900,000
Inventories				0
Prepaid expenses and other current assets				0
Property and equipment				0
Goodwill				0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				24,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				$ 24,900,000
Business Acquisition, Effective Date of Acquisition				Mar. 01, 2016
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				24,900,000
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, Noncurrent Liabilities, Long-term Debt				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
ScarAway [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred									26,700,000
Purchase price paid									26,700,000
Contingent consideration									0
Inventories									1,000,000
Prepaid expenses and other current assets									0
Property 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
Purchase price paid						380,200,000
Contingent consideration						0
Inventories						200,000
Prepaid expenses and other current assets						0
Property 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
Purchase price paid							150,400,000
Inventories							1,500,000
Prepaid expenses and other current assets							0
Property 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
Purchase price paid									223,600,000
Contingent consideration									0
Inventories									0
Prepaid expenses and other current assets									0
Property 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
Purchase price paid										37,900,000
Contingent consideration										0
Inventories										7,200,000
Prepaid expenses and other current assets										2,100,000
Property and equipment										6,000,000
Goodwill										6,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										11,000,000
Other non-current 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																					295,000,000
Shares, Issued | shares											5,400,000
Business Combination, Consideration Transferred											$ 2,983,200,000
Purchase price paid											2,983,200,000
Contingent consideration											0
Inventories											202,500,000
Prepaid expenses and other current assets											39,200,000
Property and equipment											130,800,000
Goodwill											1,900,400,000
Other non-current 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
Indemnification available from acquired company's sellers											$ 1,100,000
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																	29,200,000	[1]	52,500,000	[3],[4]
Purchase price paid																	15,300,000	[1]	21,900,000	[3],[4]
Contingent consideration														30,600,000	[3],[4]		13,900,000	[1]	30,600,000	[3],[4]
Inventories														7,100,000	[3],[4]		0	[1]	7,100,000	[3],[4]
Prepaid expenses and other current assets														100,000	[3],[4]		0	[1]	100,000	[3],[4]
Property and equipment														1,200,000	[3],[4]		0	[1]	1,200,000	[3],[4]
Goodwill														200,000	[3],[4]		0	[1]	200,000	[3],[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[3],[4]													41,900,000					41,900,000
Other non-current assets	[1]																0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	[3],[4]													52,500,000					52,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents														3,800,000	[3],[4]		0	[1]	3,800,000	[3],[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables														4,900,000	[3],[4]		0	[1]	4,900,000	[3],[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	[3],[4]													59,200,000					59,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	[3],[4]													2,800,000					2,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, short term debt	[1]																0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities														100,000	[3],[4]		0	[1]	100,000	[3],[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued payroll	[1]																0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, accrued customer programs	[1]																0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt														3,300,000	[3],[4]		0	[1]	3,300,000	[3],[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent														500,000	[3],[4]		0	[1]	500,000	[3],[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	[1]																0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	[3],[4]													6,700,000					6,700,000
Developed technology rights [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross							$ 0							1,805,900,000			1,383,500,000		1,805,900,000
Developed technology rights [Member] | Tretinoin [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					$ 411,000,000
Developed technology rights [Member] | Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				0
Developed technology rights [Member] | ScarAway [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life									8 years
Finite-Lived Intangible Assets, Gross									$ 500,000
Developed technology rights [Member] | Entocort [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross						380,000,000
Developed technology rights [Member] | GSK [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross									$ 0
Developed technology rights [Member] | Gelcaps [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross										0
Developed technology rights [Member] | Omega [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross																	27,200,000
Developed technology rights [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[3],[4]													23,300,000					23,300,000
Finite-Lived Intangible Assets, Gross	[1]																0
Non-compete agreements
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross														14,600,000			15,200,000		14,600,000
Non-compete agreements | 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					$ 2,300,000
Non-compete agreements | Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				0
Non-compete agreements | 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 | Entocort [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						0
Non-compete agreements | 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 | GSK [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									0
Non-compete agreements | Gelcaps [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles										0
Non-compete agreements | 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 | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles														0	[3],[4]		0	[1]	0	[3],[4]
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]
Finite-Lived Intangible Assets, Gross														6,122,300,000			6,053,400,000		6,122,300,000
Licensing Agreements [Member] | Benzaclin [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			9 years
Licensing Agreements [Member] | Tretinoin [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					0
Licensing Agreements [Member] | Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				0
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														3,400,000	[3],[4]		0	[1]	3,400,000	[3],[4]
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	[1]																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]
Finite-Lived Intangible Assets, Gross														1,564,000,000			1,520,700,000		1,564,000,000
Customer Relationships [Member] | Tretinoin [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					0
Customer Relationships [Member] | Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				0
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														8,200,000	[3],[4]		0	[1]	8,200,000	[3],[4]
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	[1]																0
In-process research and development
Business Acquisition [Line Items]
In-process research and development														67,900,000			48,200,000		67,900,000
In-process research and development | Tretinoin [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets					$ 0
In-process research and development | Development stage rx products [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets				$ 24,900,000
In-process research and development | ScarAway [Member]
Business Acquisition [Line Items]
In-process research and development									0
In-process research and development | Entocort [Member]
Business Acquisition [Line Items]
In-process research and development						$ 0
In-process research and development | Naturwohl [Member]
Business Acquisition [Line Items]
In-process research and development							$ 0
In-process research and development | GSK [Member]
Business Acquisition [Line Items]
In-process research and development									0
In-process research and development | Gelcaps [Member]
Business Acquisition [Line Items]
In-process research and development										0
In-process research and development | Omega [Member]
Business Acquisition [Line Items]
In-process research and development											$ 0
In-process research and development | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
In-process research and development	[1]																29,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	[3],[4]													7,000,000					7,000,000
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 | €												€ 135.9
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]
Purchase price paid | €								€ 133.5
Euro member countries, euro | GSK [Member]
Business Acquisition [Line Items]
Purchase price paid									$ 200,000,000
Euro member countries, euro | Maximum [Member] | Omega [Member]
Business Acquisition [Line Items]
Indemnification available from acquired company's sellers											$ 120,900,000
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																					18,100,000
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
CHC
Business Acquisition [Line Items]
Proceeds from sale of business		$ 61,800,000
Goodwill														1,887,900,000			$ 1,890,000,000		1,887,900,000
Operating Income														$ 100,100,000		$ 117,300,000			313,600,000		$ 364,800,000
Impairment of Long-Lived Assets to be Disposed of																			$ 6,200,000

[1] Consists of eight product acquisitions in the CHC, BCH, and Rx segments

[2] The BCH segment was created on March 30, 2015 as a result of the Omega acquisition, thus data for the nine months ended September 26, 2015 includes only six months of results from operations attributable to Omega.

[3] * Opening balance sheet is preliminary

[4] Consists of four product acquisitions in the CHC and Rx segment