Annual report pursuant to Section 13 and 15(d)

ACQUISITION - Purchase Price Allocation (Details)

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ACQUISITION - Purchase Price Allocation (Details) - USD ($)
$ in Millions
 7 Months Ended 12 Months Ended
Jul. 06, 2015
Jan. 30, 2016
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Business Acquisition [Line Items]          
Goodwill     $ 5,025.2 $ 5,023.5  
Acquisition cost paid in common stock and equity compensation     0.0 0.0 $ 2,290.1
Acquisition cost paid in cash, net of cash acquired     $ 0.0 0.0 $ 6,527.7
Family Dollar [Member]          
Business Acquisition [Line Items]          
Cash       305.3  
Short-term investments       4.0  
Accounts receivable       71.1  
Inventory       1,765.5  
Taxes receivable       32.9  
Other current assets       100.1  
Property, plant and equipment       1,893.3  
Assets available for sale       10.1  
Goodwill       4,859.9  
Intangible assets, net       3,570.4  
Other assets       78.1  
Long-term debt, including current portion       (497.0)  
Accounts payable       (635.2)  
Other current liabilities       (563.4)  
Deferred tax liabilities, net       (1,618.4)  
Other liabilities       (253.6)  
Total purchase price       $ 9,123.1  
Less: Cash acquired   $ (305.3)      
Total purchase price, net of cash acquired   8,817.8      
Acquisition cost paid in common stock and equity compensation $ 2,300.0        
Acquisition cost paid in cash, net of cash acquired   6,527.7      
Family Dollar [Member] | Common Stock [Member]          
Business Acquisition [Line Items]          
Acquisition cost paid in common stock and equity compensation   2,272.4      
Family Dollar [Member] | Stock Compensation Plan [Member]          
Business Acquisition [Line Items]          
Acquisition cost paid in common stock and equity compensation   $ 17.7