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New accounting pronouncements - Effects of the Adoption of ASC 842 (Details) - USD ($) $ in Millions | Aug. 03, 2019 | Feb. 03, 2019 | Feb. 02, 2019 | Aug. 04, 2018
--- | --- | --- | --- | ---
Current assets: |  |  |  |
Other current assets | $ 190.6 | $ 235.2 | $ 244.0 | $ 239.3
Non-current assets: |  |  |  |
Operating lease right-of-use assets | 1,729.3 | 1,927.2 | 0.0 |
Current liabilities: |  |  |  |
Accrued expenses and other current liabilities | 418.0 | 393.8 | 502.8 | 440.4
Operating lease liabilities | 324.8 | 376.5 | 0.0 |
Non-current liabilities: |  |  |  |
Operating lease liabilities | 1,499.0 | 1,676.9 | 0.0 |
Other liabilities | 122.7 | $ 198.1 | $ 224.1 | $ 236.1
Accounting Standards Update 2016-02 |  |  |  |
Current assets: |  |  |  |
Other current assets | (8.8) |  |  |
Non-current assets: |  |  |  |
Operating lease right-of-use assets | 1,927.2 |  |  |
Current liabilities: |  |  |  |
Accrued expenses and other current liabilities | (109.0) |  |  |
Operating lease liabilities | 376.5 |  |  |
Non-current liabilities: |  |  |  |
Operating lease liabilities | 1,676.9 |  |  |
Other liabilities | $ (26.0) |  |  |

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