Goodwill and Other Intangible Assets Goodwill (Details) - USD ($)	3 Months Ended				6 Months Ended			9 Months Ended	12 Months Ended			18 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Oct. 03, 2016	Dec. 31, 2015	Dec. 27, 2014	Oct. 01, 2016	Dec. 31, 2016	Jun. 27, 2015	Jun. 28, 2014	Dec. 31, 2016	Apr. 04, 2016
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived						$ 185,100,000			$ 665,600,000	$ 0	$ 0
Impairment charges (credits)						215,600,000	$ 0		2,631,000,000	6,800,000	6,000,000
Write-off of in-process research and development						0			0	0
Impairment of intangibles					$ 849,100,000				849,500,000
Goodwill [Roll Forward]
Beginning balance				$ 5,152,700,000		4,721,200,000	3,473,100,000	$ 5,152,700,000	5,152,700,000	3,473,100,000		$ 4,721,200,000
Goodwill, acquired during period						97,100,000			1,700,000	1,274,400,000
Goodwill impairment charge	$ (224,100,000)	$ (737,900,000)		(130,500,000)		0			(1,092,500,000)		0
Goodwill, Transfers						(27,600,000)			13,500,000
Currency translation adjustment						(58,100,000)			26,700,000	(6,500,000)
Purchase Accounting Adjustments						420,100,000			700,000	(13,000,000)
Ending balance	4,049,400,000					5,152,700,000			4,049,400,000	4,721,200,000	3,473,100,000	4,049,400,000
Indefinite-lived intangible assets					$ 674,200,000								$ 364,500,000
Finite lived assets, useful life								20 years
CHCA
Goodwill [Roll Forward]
Beginning balance				1,814,300,000		1,817,200,000	1,827,900,000	$ 1,814,300,000	1,814,300,000	1,827,900,000		1,817,200,000
Goodwill, acquired during period						9,700,000			0	4,800,000
Goodwill impairment charge									(24,500,000)	(6,800,000)		1,100,000,000
Goodwill, Transfers						(13,000,000)			4,500,000
Currency translation adjustment						(800,000)			900,000	(1,500,000)
Purchase Accounting Adjustments						1,200,000			17,200,000	(7,200,000)
Ending balance	1,810,600,000					1,814,300,000			1,810,600,000	1,817,200,000	1,827,900,000	1,810,600,000
CHCI
Goodwill [Roll Forward]
Beginning balance				1,983,200,000		1,530,200,000	248,200,000	1,983,200,000	1,983,200,000	248,200,000		1,530,200,000
Goodwill, acquired during period						87,400,000			0	1,269,600,000
Goodwill impairment charge									(868,400,000)	0
Goodwill, Transfers						0			0
Currency translation adjustment						(53,300,000)			27,500,000	12,400,000
Purchase Accounting Adjustments						418,900,000			(16,500,000)	0
Ending balance	1,070,800,000					1,983,200,000			1,070,800,000	1,530,200,000	248,200,000	1,070,800,000
RXA
Goodwill [Roll Forward]
Beginning balance				1,084,100,000		1,086,000,000	1,098,700,000	1,084,100,000	1,084,100,000	1,098,700,000		1,086,000,000
Goodwill, acquired during period						0			1,700,000	0
Goodwill impairment charge									0	0
Goodwill, Transfers						0			0
Currency translation adjustment						(1,900,000)			(800,000)	(8,000,000)
Purchase Accounting Adjustments						0			0	(4,700,000)
Ending balance	1,086,600,000					1,084,100,000			1,086,600,000	1,086,000,000	1,098,700,000	1,086,600,000
Specialty Sciences [Member]
Goodwill [Roll Forward]
Beginning balance				199,600,000		199,600,000	200,700,000	199,600,000	199,600,000	200,700,000		199,600,000
Goodwill, acquired during period						0			0	0
Goodwill impairment charge									(199,600,000)	0
Goodwill, Transfers						0			0
Currency translation adjustment						0			0	0
Purchase Accounting Adjustments						0			0	(1,100,000)
Ending balance	0					199,600,000			0	199,600,000	200,700,000	0
Other
Goodwill [Roll Forward]
Beginning balance				71,500,000		88,200,000	$ 97,600,000	$ 71,500,000	71,500,000	97,600,000		88,200,000
Goodwill, acquired during period						0			0	0
Goodwill impairment charge									0	0
Goodwill, Transfers						(14,600,000)			9,000,000
Currency translation adjustment						(2,100,000)			(900,000)	(9,400,000)
Purchase Accounting Adjustments						0			0	0
Ending balance	81,400,000					71,500,000			81,400,000	88,200,000	$ 97,600,000	81,400,000
Mexico | CHCA
Goodwill [Roll Forward]
Goodwill impairment charge										(6,800,000)
Branded CHC rest of world [Member] | CHCI
Goodwill [Roll Forward]
Goodwill impairment charge		(675,600,000)	$ (24,500,000)	$ (130,500,000)
Branded CHC Belgium [Member] | CHCI
Goodwill [Roll Forward]
Goodwill impairment charge		$ (62,300,000)
Level 3 | Nonrecurring
Goodwill [Roll Forward]
Indefinite-lived intangible assets	$ 300,000					$ 1,031,800,000			$ 300,000	$ 0		$ 300,000