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Revenue recognition - Unamortized Deferred Selling Costs (Details) - USD ($) $ in Millions | Feb. 02, 2019 | Feb. 03, 2018
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Revenue from Contract with Customer [Abstract] |  |
Other current assets | $ 23.8 | $ 30.9
Other assets | 75.4 | 89.5
Total deferred ESP selling costs | $ 99.2 | $ 120.4

X
- Definition Deferred Revenue Extended Service Plan Costs Noncurrent + References No definition available. + Details
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X
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- Definition Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- References No definition available. + Details
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