Annual report pursuant to Section 13 and 15(d)

Segments and Disaggregated Revenue - Disaggregation of Revenue (Details)

v3.22.0.1
Segments and Disaggregated Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 29, 2022
Jan. 30, 2021
Feb. 01, 2020
Disaggregation of Revenue [Line Items]      
Total net sales $ 26,309.8 $ 25,508.4 $ 23,610.8
Dollar Tree      
Disaggregation of Revenue [Line Items]      
Total net sales 13,922.1 13,265.0 12,507.9
Family Dollar      
Disaggregation of Revenue [Line Items]      
Total net sales $ 12,387.7 $ 12,243.4 $ 11,102.9
Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 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%
Consumable | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Total net sales $ 6,334.5 $ 6,407.0 $ 6,155.3
Consumable | Family Dollar      
Disaggregation of Revenue [Line Items]      
Total net sales $ 9,446.5 $ 9,367.8 $ 8,604.7
Consumable | Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 45.50% 48.30% 49.20%
Consumable | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 76.30% 76.50% 77.50%
Variety | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Total net sales $ 6,794.0 $ 6,194.8 $ 5,732.1
Variety | Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 48.80% 46.70% 45.80%
Seasonal | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Total net sales $ 793.6 $ 663.2 $ 620.5
Seasonal | Product Concentration Risk | Revenue, Segment Benchmark | Dollar Tree      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 5.70% 5.00% 5.00%
Home products | Family Dollar      
Disaggregation of Revenue [Line Items]      
Total net sales $ 1,033.9 $ 1,078.1 $ 866.0
Home products | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 8.30% 8.80% 7.80%
Apparel and accessories | Family Dollar      
Disaggregation of Revenue [Line Items]      
Total net sales $ 781.5 $ 690.1 $ 644.0
Apparel and accessories | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 6.30% 5.60% 5.80%
Seasonal and electronics | Family Dollar      
Disaggregation of Revenue [Line Items]      
Total net sales $ 1,125.8 $ 1,107.4 $ 988.2
Seasonal and electronics | Product Concentration Risk | Revenue, Segment Benchmark | Family Dollar      
Disaggregation of Revenue [Line Items]      
Concentration risk percentage 9.10% 9.10% 8.90%