SEGMENTS (Details) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Oct. 31, 2015
USD ($)
|
Nov. 01, 2014
USD ($)
|
Oct. 31, 2015
USD ($)
|
Nov. 01, 2014
USD ($)
|
Jan. 31, 2015
USD ($)
|
|
| Segment Reporting Information [Line Items] | |||||
| Net sales | $ 4,945,200,000 | $ 2,095,200,000 | $ 10,133,100,000 | $ 6,126,600,000 | |
| Gross Profit | 1,400,000,000 | 725,300,000 | 3,004,100,000 | 2,115,900,000 | |
| Operating Income (Loss) | 223,700,000 | 219,700,000 | 579,900,000 | 656,600,000 | |
| Assets | 16,699,000,000 | 3,367,700,000 | 16,699,000,000 | 3,367,700,000 | $ 3,492,700,000 |
| Goodwill | $ 5,024,100,000 | 168,700,000 | 5,024,100,000 | 168,700,000 | 164,600,000 |
| Number of retail discount stores | 14,000 | ||||
| Number of states stores operating in | 48 | ||||
| Number of Canadian provinces | 5 | ||||
| Number of reportable segments | 2 | ||||
| Dollar Tree | |||||
| Segment Reporting Information [Line Items] | |||||
| Net sales | $ 2,271,700,000 | 2,095,200,000 | 6,648,000,000 | 6,126,600,000 | |
| Gross Profit | 772,200,000 | 725,300,000 | 2,270,400,000 | 2,115,900,000 | |
| Operating Income (Loss) | 224,800,000 | 219,700,000 | 676,000,000 | 656,600,000 | |
| Assets | 4,136,100,000 | 3,367,700,000 | 4,136,100,000 | 3,367,700,000 | 3,492,700,000 |
| Goodwill | 251,400,000 | 168,700,000 | 251,400,000 | 168,700,000 | 164,600,000 |
| Price Point | $ 1.00 | ||||
| Number of distribution centers | 10 | ||||
| Family Dollar | |||||
| Segment Reporting Information [Line Items] | |||||
| Net sales | $ 2,673,500,000 | 0 | 3,485,100,000 | 0 | |
| Gross Profit | 627,800,000 | 0 | 733,700,000 | 0 | |
| Operating Income (Loss) | (1,100,000) | 0 | (96,100,000) | 0 | |
| Assets | 12,562,900,000 | 0 | 12,562,900,000 | 0 | 0 |
| Goodwill | $ 4,772,700,000 | $ 0 | $ 4,772,700,000 | $ 0 | $ 0 |
| Number of distribution centers | 11 | ||||