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Segment Information | 12 Months Ended
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Sep. 03, 2020
Segment Reporting [Abstract] |
Segment Information | Segment and Other Information Segment information reported herein is consistent with how it is reviewed and evaluated by our chief operating decision maker. We have the following four business units, which are our reportable segments: Compute and Networking Business Unit (“CNBU”): Includes memory products sold into client, cloud server, enterprise, graphics, and networking markets and sales of certain 3D XPoint products. Mobile Business Unit (“MBU”): Includes memory products sold into smartphone and other mobile-device markets. Storage Business Unit (“SBU”): Includes SSDs and component-level solutions sold into enterprise and cloud, client, and consumer storage markets, other discrete storage products sold in component and wafer form to the removable storage market, and sales of certain 3D XPoint products. Embedded Business Unit (“EBU”): Includes memory and storage products sold into automotive, industrial, and consumer markets. Certain operating expenses directly associated with the activities of a specific segment are charged to that segment. Other indirect operating income and expenses are generally allocated to segments based on their respective percentage of cost of goods sold or forecasted wafer production. We do not identify or report internally our assets (other than goodwill) or capital expenditures by segment, nor do we allocate gains and losses from equity method investments, interest, other non-operating income or expense items, or taxes to segments. As of September 3, 2020 and August 29, 2019, CNBU, MBU, SBU, and EBU had goodwill of $832 million, $198 million, $101 million, and $97 million, respectively.
For the year ended | 2020 | 2019 | 2018
Revenue |  |  |
CNBU | $ | 9,184 |  | $ | 9,968 |  | $ | 15,252 |
MBU | 5,702 |  | 6,403 |  | 6,579 |
SBU | 3,765 |  | 3,826 |  | 5,022 |
EBU | 2,759 |  | 3,137 |  | 3,479 |
All Other | 25 |  | 72 |  | 59 |
| $ | 21,435 |  | $ | 23,406 |  | $ | 30,391 |
Operating income (loss) |  |  |
CNBU | $ | 2,010 |  | $ | 4,645 |  | $ | 9,773 |
MBU | 1,074 |  | 2,606 |  | 3,033 |
SBU | 36 |  | (386) |  | 964 |
EBU | 301 |  | 923 |  | 1,473 |
All Other | (2) |  | 13 |  | — |
| 3,419 |  | 7,801 |  | 15,243 |
Unallocated |  |  |
Stock-based compensation | (328) |  | (243) |  | (198) |
Restructure and asset impairments | (60) |  | 32 |  | (28) |
Employee severance | — |  | (116) |  | — |
Start-up and preproduction costs | — |  | (58) |  | — |
Other | (28) |  | (40) |  | (23) |
| (416) |  | (425) |  | (249) |
Operating income | $ | 3,003 |  | $ | 7,376 |  | $ | 14,994 |
Depreciation and amortization expense included in operating income was as follows:
For the year ended | 2020 | 2019 | 2018
CNBU | $ | 2,318 |  | $ | 1,833 |  | $ | 1,755 |
MBU | 1,436 |  | 1,235 |  | 1,077 |
SBU | 1,115 |  | 1,555 |  | 1,295 |
EBU | 741 |  | 748 |  | 603 |
All Other | 12 |  | 27 |  | 18 |
Unallocated | 28 |  | 26 |  | 11 |
| $ | 5,650 |  | $ | 5,424 |  | $ | 4,759 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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