Assets Held for Sale (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 01, 2017	Jul. 01, 2017	Dec. 31, 2016
CHCI
Less: impairment reserves	$ (3.7)	$ (3.7)
CHCA
Less: impairment reserves			$ (6.2)
Other
Less: impairment reserves			(35.3)
Discontinued operations, held-for-sale | CHCI
Current assets	17.0	17.0
Goodwill	7.7	7.7
Property, plant and equipment	0.0	0.0
Other assets	0.0	0.0
Total assets held for sale	21.0	21.0
Current liabilities	8.0	8.0
Other liabilities	1.2	1.2
Total liabilities held for sale	$ 9.2	$ 9.2
Discontinued operations, held-for-sale | CHCA
Current assets			0.0
Goodwill			0.0
Property, plant and equipment			13.5
Other assets			0.0
Less: impairment reserves			(3.7)
Total assets held for sale			9.8
Current liabilities			0.1
Other liabilities			0.0
Total liabilities held for sale			0.1
Discontinued operations, held-for-sale | Other
Current assets			5.1
Goodwill			5.5
Property, plant and equipment			33.2
Other assets			3.8
Less: impairment reserves			(35.3)
Total assets held for sale			12.3
Current liabilities			1.9
Other liabilities			1.9
Total liabilities held for sale			3.8
API [Member] | Other
Less: impairment reserves			(6.3)
Animal Health pet treats [Member] | CHCA
Less: impairment reserves			$ (3.7)