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v3.20.1

Basis of Presentation (Narrative) (Details) | 3 Months Ended
--- | ---
May 02, 2020 USD ($) segment | Feb. 01, 2020 USD ($) | May 04, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Number of Reportable Segments | segment | 2 |  |
Goodwill | $ 986,000,000 | $ 984,000,000 | $ 915,000,000
Employee retention credits | 69,000,000 |  |
Goodwill and intangible assets impairment charges | 0 | $ 0 | $ 0
Best Buy Domestic [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Goodwill | 444,000,000 |  |
Best Buy Health [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Goodwill | 542,000,000 |  |
Revolving Credit Facility [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 1,250,000,000 |  |
Debt instrument, term | 5 years |  |

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