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Net Sales (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 04, 2019 | Jul. 29, 2018 | Aug. 04, 2019 | Jul. 29, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 30,839 | $ 30,463 | $ 57,220 | $ 55,410
Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 29,480 | 29,076 | 54,712 | 52,811
Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 1,359 | 1,387 | 2,508 | 2,599
Building Materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 10,495 | 10,660 | 19,899 | 19,981
Décor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 10,050 | 9,653 | 18,795 | 18,066
Hardlines |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 10,294 | 10,150 | 18,526 | 17,363
In the U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 28,186 | 27,852 | 52,639 | 50,895
Outside the U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 2,653 | $ 2,611 | $ 4,581 | $ 4,515

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