Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated OCI by Component and Reclassifications Out of Accumulated OCI (Detail) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	$ 2,490.2	$ 3,060.7	$ 2,810.4
OCI before reclassifications	52.5	(32.7)	(42.0)
Amounts reclassified from AOCI to net income	(5.4)	(0.9)	4.5
Total other comprehensive (loss) income	47.1	(33.6)	(37.5)
Balance	2,499.8	2,490.2	3,060.7
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(263.4)	(237.8)	(197.6)
OCI before reclassifications	50.9	(25.6)	(40.2)
Amounts reclassified from AOCI to net income	0.0	0.0	0.0
Total other comprehensive (loss) income	50.9	(25.6)	(40.2)
Balance	(212.5)	(263.4)	(237.8)
Losses on available-for-sale securities, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(0.4)	(0.4)	0.0
OCI before reclassifications	0.3	0.0	(0.4)
Amounts reclassified from AOCI to net income	0.0	0.0	0.0
Total other comprehensive (loss) income	0.3	0.0	(0.4)
Balance	(0.1)	(0.4)	(0.4)
Gains (losses) on cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	2.4	(3.9)	4.4
OCI before reclassifications	1.8	6.9	(11.8)
Amounts reclassified from AOCI to net income	(3.5)	(0.6)	3.5
Total other comprehensive (loss) income	(1.7)	6.3	(8.3)
Balance	0.7	2.4	(3.9)
Actuarial gains (losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(55.5)	(43.1)	(56.7)
OCI before reclassifications	0.0	(13.6)	10.9
Amounts reclassified from AOCI to net income	4.4	1.2	2.7
Total other comprehensive (loss) income	4.4	(12.4)	13.6
Balance	(51.1)	(55.5)	(43.1)
Prior service credits (costs)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	9.2	11.1	13.3
OCI before reclassifications	(0.5)	(0.4)	(0.5)
Amounts reclassified from AOCI to net income	(6.3)	(1.5)	(1.7)
Total other comprehensive (loss) income	(6.8)	(1.9)	(2.2)
Balance	2.4	9.2	11.1
Accumulated other comprehensive (loss) income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(307.7)	(274.1)	(236.6)
Balance	$ (260.6)	$ (307.7)	$ (274.1)