Derivatives - Derivatives Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Foreign currency contracts
Derivative [Line Items]
Pre-tax gains (losses) recorded in AOCI	$ 4.1	$ 1.4
Commodity contracts
Derivative [Line Items]
Pre-tax gains (losses) recorded in AOCI	(2.1)	(3.7)
Cash Flow Hedging
Derivative [Line Items]
Pre-tax gains (losses) recorded in AOCI	2.4	(5.7)
Cash Flow Hedging | Foreign currency contracts
Derivative [Line Items]
Pre-tax gains (losses) recorded in AOCI	4.1	1.4	$ 0.9
Cash Flow Hedging | Commodity contracts
Derivative [Line Items]
Pre-tax gains (losses) recorded in AOCI	(2.1)	(3.7)	$ 5.7
Cash Flow Hedging | Interest rate swaps
Derivative [Line Items]
Pre-tax gains (losses) recorded in AOCI	$ 0.4	$ (3.4)