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Restructuring Charges Restructuring Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 03, 2018 | Oct. 28, 2017 | Jul. 29, 2017 | Apr. 29, 2017 | Jan. 28, 2017 | Oct. 29, 2016 | Jul. 30, 2016 | Apr. 30, 2016 | Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016 | Jan. 31, 2015
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | $ 10 | $ 39 | $ 198 |
Restructuring Charges, Operating Income Impact |  | $ 10 | $ (2) | $ 2 | $ 0 | $ 9 | $ 1 | $ 0 | $ 29 |  | 10 | 39 | 201 |
Restructuring Program Best Buy Mobile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 9 | 0 | 0 |
Restructuring Program Renew Blue Phase 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 0 | 26 | 0 |
Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | (2) | 3 | 200 |
Restructuring Reserve |  | 15 |  |  |  | 34 |  |  |  |  | 15 | 34 | 66 | $ 0
Restructuring Program 2013 Renew Blue [Member] [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges | [1] |  |  |  |  |  |  |  |  |  | 3 | 5 | (2) |
Other Restructuring [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges | [2] |  |  |  |  |  |  |  |  |  | 0 | 5 | 3 |
Employee Severance [Member] | Restructuring Program Best Buy Mobile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 8 |  |  |
Restructuring Reserve |  | 8 |  |  |  |  |  |  |  |  | 8 |  |  |
Employee Severance [Member] | Restructuring Program Renew Blue Phase 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  |  | 18 |  |
Restructuring Reserve |  |  |  |  |  | 0 |  |  |  |  |  | 0 | 0 |
Employee Severance [Member] | Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve |  | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 2 | 0
Employee Severance [Member] | Restructuring Program 2013 Renew Blue [Member] [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve |  | 0 |  |  |  |  |  |  |  |  | 0 |  |  |
Property and equipment write-downs [Member] | Restructuring Program Best Buy Mobile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
Property and equipment write-downs [Member] | Restructuring Program Renew Blue Phase 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  |  | 8 |  |
Facility Closing [Member] | Restructuring Program Best Buy Mobile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve |  | 0 |  |  |  |  |  |  |  |  | 0 |  |  |
Facility Closing [Member] | Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve |  | 15 |  |  |  | $ 34 |  |  |  |  | 15 | 34 | 64 | $ 0
Facility Closing [Member] | Restructuring Program 2013 Renew Blue [Member] [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve |  | 11 |  |  |  |  |  |  |  |  | 11 |  |  |
Facility Closing [Member] | Other Restructuring [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve |  | $ 4 |  |  |  |  |  |  |  |  | 4 |  |  |
Domestic Segment [Member] | Restructuring Program 2013 Renew Blue [Member] [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (1) |
International Segment [Member] | Restructuring Program 2013 Renew Blue [Member] [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 3 | 5 | (1) |
International Segment [Member] | Employee Severance [Member] | Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 25 |
International Segment [Member] | Property and equipment write-downs [Member] | Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 30 |
International Segment [Member] | Facility Closing [Member] | Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  | $ (2) | $ 3 | $ 102 |
Scenario, Forecast [Member] | Minimum [Member] | Restructuring Program Best Buy Mobile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected Future Pre-Tax Restructuring Charges |  |  |  |  |  |  |  |  |  | $ 55 |  |  |  |
Scenario, Forecast [Member] | Maximum [Member] | Restructuring Program Best Buy Mobile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected Future Pre-Tax Restructuring Charges |  |  |  |  |  |  |  |  |  | $ 65 |  |  |  |
[1] | Represents activity related to our remaining termination benefits and vacant space liabilities, primarily in our International segment, for our Renew Blue restructuring program, which began in the fourth quarter of fiscal 2013. Charges related to the Domestic segment were $0 million, $0 million and a benefit of $1 million for fiscal 2018, 2017 and 2016, respectively; and to the International segment were $3 million, $5 million and a benefit of $1 million for fiscal 2018, 2017 and 2016, respectively. As of February 3, 2018, the termination benefits liability was $0 million and the remaining vacant space liability was $11 million. We may continue to incur immaterial adjustments to the vacant space liability for changes in sublease assumptions or potential lease buyouts. In addition, lease payments for vacated stores will continue until leases expire or are terminated.
[2] | Represents activity related to our remaining vacant space liability for U.S. large-format store closures in fiscal 2013. We may continue to incur immaterial adjustments to the liability for changes in sublease assumptions or potential lease buyouts. In addition, lease payments for vacated stores will continue until leases expire or are terminated. The remaining vacant space liability was $4 million at February 3, 2018.

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