Assets Held for Sale (Details) - USD ($) $ in Millions			3 Months Ended			6 Months Ended	12 Months Ended
	Feb. 01, 2017	Aug. 05, 2016	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Dec. 31, 2015	Dec. 31, 2016	Jun. 27, 2015	Jun. 28, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business						$ 0.0	$ 69.1	$ 0.0	$ 0.0
Assets held for sale
Less: impairment reserves			$ (4.5)	$ 10.2	$ 10.5
CHCA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business		$ 61.8
Assets held for sale
Less: impairment reserves							6.2
CHCA | Discontinued operations, held-for-sale
Assets held for sale
Current assets			0.0			55.1	0.0
Goodwill			0.0			13.0	0.0
Property, plant and equipment			13.5			18.8	13.5
Other assets			0.0			0.0	0.0
Less: impairment reserves						0.0	3.7
Total assets held for sale			9.8			86.9	9.8
Liabilities held for sale
Current liabilities			0.1			30.5	0.1
Other liabilities			0.0			0.0	0.0
Total liabilities held for sale			0.1			30.5	0.1
Other
Assets held for sale
Less: impairment reserves							6.3
Other | Discontinued operations, held-for-sale
Assets held for sale
Current assets			5.1			13.6	5.1
Goodwill			5.5			14.5	5.5
Property, plant and equipment			33.2			37.4	33.2
Other assets			3.8			3.2	3.8
Less: impairment reserves						29.0	35.3
Total assets held for sale			12.3			39.7	12.3
Liabilities held for sale
Current liabilities			1.9			0.5	1.9
Other liabilities			1.9			1.7	1.9
Total liabilities held for sale			$ 3.8			$ 2.2	3.8
CHCA
Assets held for sale
Less: impairment reserves							$ 3.7
Subsequent Event | CHCA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business	$ 7.7