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Discontinued Operations (Tables) | 12 Months Ended
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Jan. 28, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
Disposal Groups, Including Discontinued Operations [Table Text Block] | The aggregate financial results of all discontinued operations for fiscal 2017, 2016 and 2015 were as follows ($ in millions):
| 2017 |  | 2016 |  | 2015
Revenue | $ | — |  |  | $ | 217 |  |  | $ | 1,564 |
Restructuring charges(1) | — |  |  | 1 |  |  | 18 |
Gain (loss) from discontinued operations before income tax expense | 28 |  |  | (8 | ) |  | (12 | )
Income tax expense | (7 | ) |  | (1 | ) |  | — |
Gain on sale of discontinued operations | — |  |  | 99 |  |  | 1 |
Net earnings (loss) from discontinued operations including noncontrolling interests | 21 |  |  | 90 |  |  | (11 | )
Net earnings from discontinued operations attributable to noncontrolling interests | — |  |  | — |  |  | (2 | )
Net earnings (loss) from discontinued operations attributable to Best Buy Co., Inc. shareholders | $ | 21 |  |  | $ | 90 |  |  | $ | (13 | )
(1) | See Note 4, Restructuring Charges, for further discussion of the restructuring charges associated with discontinued operations.

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