| Schedule of Segment Reporting Information, by Segment | 
Net sales by segment are as follows: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
   | 
13 Weeks Ended  | 
   | 
39 Weeks Ended  | 
 
   | 
   | 
October 28,  | 
   | 
October 29,  | 
   | 
October 28,  | 
   | 
October 29,  | 
 
(in millions)  | 
   | 
2017  | 
   | 
2016  | 
   | 
2017  | 
   | 
2016  | 
 
Net sales:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
     Dollar Tree  | 
   | 
$  | 
2,685.0  | 
 
  | 
   | 
$  | 
2,466.9  | 
 
  | 
   | 
$  | 
7,843.6  | 
 
  | 
   | 
$  | 
7,238.9  | 
 
  | 
 
Family Dollar  | 
   | 
2,631.6  | 
 
  | 
   | 
2,534.7  | 
 
  | 
   | 
8,041.3  | 
 
  | 
   | 
7,844.8  | 
 
  | 
 
Total net sales  | 
   | 
$  | 
5,316.6  | 
 
  | 
   | 
$  | 
5,001.6  | 
 
  | 
   | 
$  | 
15,884.9  | 
 
  | 
   | 
$  | 
15,083.7  | 
 
  | 
 
  
 
 
Gross profit by segment is as follows: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
   | 
13 Weeks Ended  | 
   | 
39 Weeks Ended  | 
 
   | 
   | 
October 28,  | 
   | 
October 29,  | 
   | 
October 28,  | 
   | 
October 29,  | 
 
(in millions)  | 
   | 
2017  | 
   | 
2016  | 
   | 
2017  | 
   | 
2016  | 
 
Gross profit:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
     Dollar Tree  | 
   | 
$  | 
942.6  | 
 
  | 
   | 
$  | 
857.3  | 
 
  | 
   | 
$  | 
2,735.0  | 
 
  | 
   | 
$  | 
2,496.2  | 
 
  | 
 
Family Dollar  | 
   | 
723.4  | 
 
  | 
   | 
663.2  | 
 
  | 
   | 
2,185.9  | 
 
  | 
   | 
2,091.2  | 
 
  | 
 
Total gross profit  | 
   | 
$  | 
1,666.0  | 
 
  | 
   | 
$  | 
1,520.5  | 
 
  | 
   | 
$  | 
4,920.9  | 
 
  | 
   | 
$  | 
4,587.4  | 
 
  | 
 
  
 
 
Depreciation and amortization expense by segment is as follows: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
   | 
13 Weeks Ended  | 
   | 
39 Weeks Ended  | 
 
   | 
   | 
October 28,  | 
   | 
October 29,  | 
   | 
October 28,  | 
   | 
October 29,  | 
 
(in millions)  | 
   | 
2017  | 
   | 
2016  | 
   | 
2017  | 
   | 
2016  | 
 
Depreciation and amortization expense:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
     Dollar Tree  | 
   | 
$  | 
62.5  | 
 
  | 
   | 
$  | 
61.3  | 
 
  | 
   | 
$  | 
186.8  | 
 
  | 
   | 
$  | 
178.1  | 
 
  | 
 
Family Dollar  | 
   | 
86.9  | 
 
  | 
   | 
96.5  | 
 
  | 
   | 
268.0  | 
 
  | 
   | 
304.2  | 
 
  | 
 
Total depreciation and amortization expense  | 
   | 
$  | 
149.4  | 
 
  | 
   | 
$  | 
157.8  | 
 
  | 
   | 
$  | 
454.8  | 
 
  | 
   | 
$  | 
482.3  | 
 
  | 
 
  
Operating income by segment is as follows: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
   | 
13 Weeks Ended  | 
   | 
39 Weeks Ended  | 
 
   | 
   | 
October 28,  | 
   | 
October 29,  | 
   | 
October 28,  | 
   | 
October 29,  | 
 
(in millions)  | 
   | 
2017  | 
   | 
2016  | 
   | 
2017  | 
   | 
2016  | 
 
Operating income:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
     Dollar Tree  | 
   | 
$  | 
317.3  | 
 
  | 
   | 
$  | 
286.0  | 
 
  | 
   | 
$  | 
921.9  | 
 
  | 
   | 
$  | 
829.2  | 
 
  | 
 
Family Dollar  | 
   | 
107.9  | 
 
  | 
   | 
56.4  | 
 
  | 
   | 
311.6  | 
 
  | 
   | 
289.1  | 
 
  | 
 
Total operating income  | 
   | 
$  | 
425.2  | 
 
  | 
   | 
$  | 
342.4  | 
 
  | 
   | 
$  | 
1,233.5  | 
 
  | 
   | 
$  | 
1,118.3  | 
 
  | 
 
  
 
 
Total assets by segment are as follows: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
   | 
As of  | 
 
   | 
   | 
October 28,  | 
   | 
January 28,  | 
   | 
October 29,  | 
 
(in millions)  | 
   | 
2017  | 
   | 
2017  | 
   | 
2016  | 
 
Total assets:  | 
   | 
   | 
   | 
   | 
   | 
   | 
 
     Dollar Tree  | 
   | 
$  | 
3,665.8  | 
 
  | 
   | 
$  | 
3,705.5  | 
 
  | 
   | 
$  | 
3,932.2  | 
 
  | 
 
Family Dollar  | 
   | 
12,064.4  | 
 
  | 
   | 
11,996.1  | 
 
  | 
   | 
12,262.8  | 
 
  | 
 
Total assets  | 
   | 
$  | 
15,730.2  | 
 
  | 
   | 
$  | 
15,701.6  | 
 
  | 
   | 
$  | 
16,195.0  | 
 
  | 
 
  
 
 
Total goodwill by segment is as follows: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
   | 
As of  | 
 
   | 
   | 
October 28,  | 
   | 
January 28,  | 
   | 
October 29,  | 
 
(in millions)  | 
   | 
2017  | 
   | 
2017  | 
   | 
2016  | 
 
Total goodwill:  | 
   | 
   | 
   | 
   | 
   | 
   | 
 
     Dollar Tree  | 
   | 
$  | 
346.2  | 
 
  | 
   | 
$  | 
345.4  | 
 
  | 
   | 
$  | 
340.1  | 
 
  | 
 
Family Dollar  | 
   | 
4,678.1  | 
 
  | 
   | 
4,678.1  | 
 
  | 
   | 
4,682.8  | 
 
  | 
 
Total goodwill  | 
   | 
$  | 
5,024.3  | 
 
  | 
   | 
$  | 
5,023.5  | 
 
  | 
   | 
$  | 
5,022.9  | 
 
  | 
 
  
 
 |