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Supplementary Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 30, 2016 | Oct. 31, 2015 | Aug. 01, 2015 | May. 02, 2015 | Jan. 31, 2015 | Nov. 01, 2014 | Aug. 02, 2014 | May. 03, 2014 | Jan. 30, 2016 | Jan. 31, 2015 | Feb. 01, 2014
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  | $ 13,623 |  | $ 8,819 |  | $ 8,528 |  | $ 8,558 |  | $ 14,209 |  | $ 9,032 |  | $ 8,459 |  | $ 8,639 |  | $ 39,528 |  | $ 40,339 |  | $ 40,611
Comparable store sales % change (as a percent) | [1] | (1.70%) |  | 0.80% |  | 3.80% |  | 0.60% |  | 2.00% |  | 2.90% |  | (2.20%) |  | (1.80%) |  | 0.50% |  | 0.50% |  |
Comparable Sales, Excluding Installment Billing, Percent Change |  | (1.80%) |  | 0.50% |  | 2.70% |  | (0.70%) |  | 1.30% |  | 2.20% |  | (2.20%) |  | (1.80%) |  | (0.10%) |  | 0.00% |  |
Gross profit |  | $ 2,951 |  | $ 2,112 |  | $ 2,098 |  | $ 2,030 |  | $ 3,026 |  | $ 2,076 |  | $ 1,978 |  | $ 1,967 |  | $ 9,191 |  | $ 9,047 |  | 9,399
Operating income (loss) |  | 771 | [2] | 230 | [2] | 288 | [2] | 86 | [2] | 810 | [3] | 205 | [3] | 225 | [3] | 210 | [3] | 1,375 | [2] | 1,450 | [4] | 1,144
Net earnings (loss) from continuing operations |  | 477 |  | 129 |  | 164 |  | 37 |  | 524 |  | 116 |  | 137 |  | 469 |  | 807 |  | 1,246 |  | 695
Gain (loss) from discontinued operations, net of tax |  | 2 |  | (4) |  | 0 |  | 92 |  | (4) |  | (9) |  | 10 |  | (8) |  | 90 |  | (11) |  | (172)
Net earnings including noncontrolling interests |  | 479 |  | 125 |  | 164 |  | 129 |  | 520 |  | 107 |  | 147 |  | 461 |  | 897 |  | 1,235 |  | 523
Net earnings (loss) attributable to Best Buy Co., Inc. |  | $ 479 |  | $ 125 |  | $ 164 |  | $ 129 |  | $ 519 |  | $ 107 |  | $ 146 |  | $ 461 |  | $ 897 |  | $ 1,233 |  | $ 532
Diluted earnings (loss) per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ 1.39 |  | $ 0.37 |  | $ 0.46 |  | $ 0.10 |  | $ 1.47 |  | $ 0.33 |  | $ 0.39 |  | $ 1.33 |  | $ 2.30 |  | $ 3.53 |  | $ 2.00
Discontinued operations |  | 0.01 | [5] | (0.01) | [5] | 0.00 | [5] | 0.26 | [5] | (0.01) | [5] | (0.03) | [5] | 0.03 | [5] | (0.02) | [5] | 0.26 | [5] | (0.04) | [5] | (0.47)
Diluted (in dollars per share) |  | $ 1.40 |  | $ 0.36 |  | $ 0.46 |  | $ 0.36 |  | $ 1.46 |  | $ 0.30 |  | $ 0.42 |  | $ 1.31 |  | $ 2.56 |  | $ 3.49 |  | $ 1.53
Months until inclusion in comparable store sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14 months |  |  |  |
Days Until Excluded From Comparable Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14 days |  |  |  |
Restructuring charges |  | $ 12 |  | $ 7 |  | $ (4) |  | $ 186 |  | $ (7) |  | $ 5 |  | $ 5 |  | $ 2 |  | $ 201 |  | $ 23 |  | $ 259
Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 201 |  | $ 5 |  |
[1] | Our comparable sales calculation compares revenue from stores, websites and call centers operating for at least 14 full months, as well as revenue related to certain other comparable sales channels for a particular period to a corresponding period in the prior year. Relocated, as well as remodeled, expanded and downsized stores closed more than 14 days, are excluded from our comparable sales calculation until at least 14 full months after reopening. Acquisitions are included in the comparable sales calculation beginning with the first full quarter following the first anniversary of the date of the acquisition. The portion of the calculation of comparable sales attributable to our International segment excludes the effect of fluctuations in foreign currency exchange rates. The calculation of comparable sales excludes the impact of revenue from discontinued operations. Comparable online sales are included in our comparable sales calculation. The method of calculating comparable sales varies across the retail industry. As a result, our method of calculating comparable sales may not be the same as other retailers' methods.
[2] | Includes $186 million, $(4) million, $7 million and $12 million of restructuring charges recorded in the fiscal first, second, third and fourth quarters, respectively, and $201 million for the 12 months ended January 30, 2016 related to measures we took to restructure our businesses.
[3] | Enterprise comparable sales for fiscal 2015 include revenue from continuing operations in the International segment. Excluding the International segment, Enterprise comparable sales, excluding the impact of installment billing, would have been (1.3%) in the first quarter, 2.0% in the second quarter, 2.4% in the third quarter, 0.5% in the fourth quarter and 0.5% for fiscal 2015, or equal to Domestic comparable sales excluding the impact of installment billing, for the same periods.
[4] | Includes $2 million, $5 million, $5 million and $(7) million of restructuring charges recorded in the fiscal first, second, third and fourth quarters, respectively, and $5 million for the 12 months ended January 31, 2015 related to measures we took to restructure our businesses.
[5] | The sum of our quarterly diluted earnings per share does not equal our annual diluted earnings per share due to differences in quarterly and annual weighted-average shares outstanding.

X
- Definition The change in sales of comparable stores from previous reporting period to current reporting period, excluding the revenue impact of installment billing, expressed as a percentage. Comparable stores represent stores operating for at least 14 full months as well as revenue related to call centers, Web sites and other comparable sales channels. + References No definition available. + Details
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