Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - USD ($) $ in Millions	Sep. 10, 2016	Jan. 02, 2016	Sep. 12, 2015
Foreign exchange contracts [Member] | Hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 161.4	$ 192.6	$ 194.0
Foreign exchange contracts [Member] | Non-hedge [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	10.8	23.2	0.0
Interest rate swaps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 537.9	$ 609.7	$ 638.9