Summary of Significant Accounting Policies - Property, Plant, and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Jun. 27, 2015	Jun. 28, 2014
Accounting Policies [Abstract]
Land	$ 45.0	$ 47.5	$ 48.7
Buildings	520.2	508.2	528.3
Machinery and equipment	1,094.7	1,103.3	1,094.0
Gross property and equipment	1,659.9	1,659.0	1,671.0
Less accumulated depreciation	(789.8)	(772.8)	(738.6)
Property and equipment, net	$ 870.1	$ 886.2	$ 932.4	$ 779.9