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Summary of Significant Accounting Policies Income Taxes (Details) - USD ($)
12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Income Tax [Line Items]      
Effective Income Tax Rate Reconciliation, Percent 35.50% 37.10% 37.70%
Tax Reform [Member]      
Income Tax [Line Items]      
Effective Income Tax Rate Reconciliation, Percent 35.00%    
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount $ 0.21