Assets Held for Sale (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 27, 2014	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Assets held for sale
Less: impairments		$ 215.6	$ 0.0	$ 0.0	$ 0.0	$ 0.0
API [Member] | Discontinued Operations, Held-for-sale [Member] | Operating Expense [Member]
Assets held for sale
Less: impairments	$ 29.0	29.0
CHC [Member]
Assets held for sale
Current assets	55.1	55.1
Goodwill	13.0	13.0
Property, plant and equipment	18.8	18.8
Other assets	0.0	0.0
Less: impairments		0.0
Total assets held for sale	86.9	86.9
Liabilities held for sale
Current liabilities	30.5	30.5
Other liabilities	0.0	0.0
Total liabilities held for sale	30.5	30.5
Other [Member]
Assets held for sale
Current assets	13.6	13.6
Goodwill	14.5	14.5
Property, plant and equipment	37.4	37.4
Other assets	3.2	3.2
Less: impairments		29.0
Total assets held for sale	39.7	39.7
Liabilities held for sale
Current liabilities	0.5	0.5
Other liabilities	1.7	1.7
Total liabilities held for sale	$ 2.2	$ 2.2