Income Taxes Classified on the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Jun. 27, 2015
Operating Loss Carryforwards [Line Items]
Liabilities		$ (764.5)	$ (879.1)
Net deferred income tax asset (liability):	$ (317.8)	(1,301.3)	(1,395.7)
Assets [Member]
Operating Loss Carryforwards [Line Items]
Assets	72.1	71.4	198.3
Liabilities [Member]
Operating Loss Carryforwards [Line Items]
Liabilities	$ (389.9)	$ (1,372.7)	$ (1,594.0)