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Discontinued Operations (Tables) | 12 Months Ended
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Jan. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
Schedule of Assets and Liabilities Held-for-Sale [Table Text Block] | The composition of assets and liabilities disposed of as a result of the sale of Five Star was as follows ($ in millions):
| February 13, 2015
Cash and cash equivalents | $ | 125 |
Receivables | 113 |
Merchandise inventories | 252 |
All other assets | 461 |
Total assets | $ | 951 |
Accounts payable | $ | 478 |
All other liabilities | 128 |
Total liabilities | $ | 606 |
Disposal Groups, Including Discontinued Operations [Table Text Block] | The aggregate financial results of all discontinued operations for fiscal 2016, 2015 and 2014 were as follows ($ in millions):
| 2016 |  | 2015 |  | 2014
Revenue | $ | 217 |  |  | $ | 1,564 |  |  | $ | 4,615 |
Restructuring charges(1) | 1 |  |  | 18 |  |  | 110 |
Loss from discontinued operations before income tax benefit (expense)(2) | (8 | ) |  | (12 | ) |  | (235 | )
Income tax benefit (expense)(3) | (1 | ) |  | — |  |  | 31 |
Gain on sale of discontinued operations(4) | 99 |  |  | 1 |  |  | 32 |
Net earnings (loss) from discontinued operations including noncontrolling interests | 90 |  |  | (11 | ) |  | (172 | )
Net (earnings) loss from discontinued operations attributable to noncontrolling interests | — |  |  | (2 | ) |  | 9 |
Net earnings (loss) from discontinued operations attributable to Best Buy Co., Inc. shareholders | $ | 90 |  |  | $ | (13 | ) |  | $ | (163 | )
(1) | See Note 4, Restructuring Charges, for further discussion of the restructuring charges associated with discontinued operations.
(2) | Includes a $175 million impairment to write down the book value of our investment in Best Buy Europe to fair value in fiscal 2014.
(3) | Income tax benefit for fiscal 2014 includes a $27 million benefit related to a tax allocation between continuing and discontinued operations and a $15 million benefit related to the impairment of our investment in Best Buy Europe. The fiscal 2014 effective tax rate for discontinued operations differs from the statutory tax rate primarily due to the previously mentioned tax allocation, sale of mindSHIFT, restructuring charges and the impairment of our investment in Best Buy Europe. The sale of mindSHIFT, restructuring charges and impairment generally included no related tax benefit. The deferred tax assets related to the sale of mindSHIFT and restructuring charges generally resulted in an increase in the valuation allowance in an equal amount, of which the investment impairment is not tax deductible.
(4) | Gain in fiscal 2014 is primarily comprised of the following: $28 million gain (with no tax impact) from sale of Best Buy Europe fixed-line business in Switzerland in the first quarter; $24 million gain (with no tax impact) from the sale of Best Buy Europe in the second quarter; and loss of $18 million from sale of mindSHIFT in the fourth quarter. Gain in fiscal 2016 of $99 million is from sale of Five Star in the first quarter.

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- Definition [Table Text Block] for In the period of disposition, for each asset and liabilities to be disposed of by sale, this table may disclose: a description of the disposed asset or liability, the loss realized at the time of disposition of the asset or liability, the income statement classification of the loss on disposition, the method of disposal (for example, abandonment, distribution in a spin-off) and the segment classification of the disposed asset. + References No definition available. + Details
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- Definition Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721533-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721665-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1474-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721683-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=51719941&loc=SL51724579-110230 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721663-107760 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2941-110230 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721673-107760 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721659-107760 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721671-107760 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5D -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721677-107760 + Details
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