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PROPERTY, PLANT AND EQUIPMENT, NET | 12 Months Ended
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Oct. 31, 2020
Property, Plant and Equipment, Net [Abstract] |
PROPERTY, PLANT AND EQUIPMENT, NET | 10. PROPERTY, PLANT AND EQUIPMENT, NET
| October 31,
| 2020 |  | 2019
| (in millions)
Land | $ | 67 |  |  | $ | 65 |
Buildings and leasehold improvements | 743 |  |  | 721 |
Machinery and equipment | 1,224 |  |  | 1,137 |
Total property, plant and equipment | 2,034 |  |  | 1,923 |
Accumulated depreciation of property, plant and equipment | (1,439 | ) |  | (1,347 | )
Property, plant and equipment, net | $ | 595 |  |  | $ | 576 |
Asset impairments were zero in 2020, 2019 and 2018. Depreciation expense was $104 million in 2020, $96 million in 2019 and $103 million in 2018.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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