Derivatives - Commodity Contracts (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 03, 2018	Jan. 28, 2017
Cash Flow Hedging
Movement in Accumulated Other Comprehensive Income [Roll Forward]
Losses recorded in AOCI, beginning of period	$ 2.4
Losses (gains) recorded in AOCI, end of period	1.2	$ 2.4
Commodity contracts
Movement in Accumulated Other Comprehensive Income [Roll Forward]
Losses recorded in AOCI, beginning of period	(2.1)
Losses (gains) recorded in AOCI, end of period	1.4	(2.1)
Commodity contracts \| Cash Flow Hedging
Movement in Accumulated Other Comprehensive Income [Roll Forward]
Losses recorded in AOCI, beginning of period	(2.1)	(3.7)
Current period gains recognized in OCI	5.2	1.8
Losses (gains) recorded in AOCI, end of period	1.4	(2.1)
Commodity contracts \| Cash Flow Hedging \| Cost of sales
Movement in Accumulated Other Comprehensive Income [Roll Forward]
Gains reclassified from AOCI to net income	(1.7)	(0.2)
Interest rate contract \| Cash Flow Hedging
Movement in Accumulated Other Comprehensive Income [Roll Forward]
Losses recorded in AOCI, beginning of period	0.4	(3.4)
Current period gains recognized in OCI	1.5	1.6
Losses (gains) recorded in AOCI, end of period	2.2	0.4
Interest rate contract \| Cash Flow Hedging \| Interest expense, net
Movement in Accumulated Other Comprehensive Income [Roll Forward]
Gains reclassified from AOCI to net income	$ 0.3	$ 2.2

Movement in Accumulated Other Comprehensive Income [Roll Forward]

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- Definition

Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners).

+ References

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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