Quarterly report pursuant to Section 13 or 15(d)

Segments and Disaggregated Revenue - Disaggregation of Revenue (Details)

v3.21.2
Segments and Disaggregated Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 31, 2021
Aug. 01, 2020
Jul. 31, 2021
Aug. 01, 2020
Disaggregation of Revenue [Line Items]        
Net sales $ 6,340.2 $ 6,277.6 $ 12,817.0 $ 12,564.4
Dollar Tree        
Disaggregation of Revenue [Line Items]        
Net sales 3,264.3 3,176.9 6,585.6 6,254.4
Family Dollar        
Disaggregation of Revenue [Line Items]        
Net sales $ 3,075.9 $ 3,100.7 $ 6,231.4 $ 6,310.0
Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 100.00% 100.00% 100.00% 100.00%
Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 100.00% 100.00% 100.00% 100.00%
Consumable | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Net sales $ 1,524.1 $ 1,528.2 $ 3,108.4 $ 3,214.7
Consumable | Family Dollar        
Disaggregation of Revenue [Line Items]        
Net sales $ 2,332.4 $ 2,289.7 $ 4,705.9 $ 4,821.8
Consumable | Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 46.70% 48.10% 47.20% 51.40%
Consumable | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 75.80% 73.80% 75.50% 76.40%
Variety | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Net sales $ 1,737.8 $ 1,641.1 $ 3,365.2 $ 2,952.1
Variety | Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 53.20% 51.70% 51.10% 47.20%
Seasonal | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Net sales $ 2.4 $ 7.6 $ 112.0 $ 87.6
Seasonal | Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 0.10% 0.20% 1.70% 1.40%
Home Products | Family Dollar        
Disaggregation of Revenue [Line Items]        
Net sales $ 247.3 $ 289.8 $ 548.3 $ 562.6
Home Products | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 8.00% 9.30% 8.80% 8.90%
Apparel And Accessories | Family Dollar        
Disaggregation of Revenue [Line Items]        
Net sales $ 208.9 $ 206.3 $ 414.1 $ 360.4
Apparel And Accessories | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 6.80% 6.70% 6.70% 5.70%
Seasonal And Electronics | Family Dollar        
Disaggregation of Revenue [Line Items]        
Net sales $ 287.3 $ 314.9 $ 563.1 $ 565.2
Seasonal And Electronics | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar        
Disaggregation of Revenue [Line Items]        
Concentration risk, percentage 9.40% 10.20% 9.00% 9.00%