v3.6.0.2

Goodwill and Intangible Assets (Details 2) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014
Intangible assets |  |  |
Intangible assets, gross | $ 5,762 | $ 9,717 |
Amortizable intangible assets, accumulated amortization | (1,575) | (4,684) |
Finite-lived Intangible Assets, Accumulated Impairment Losses | (3,103) | (3,103) |
Total Intangible Assets- Net | 1,084 | 1,930 |
Amortizable intangible assets, net | 1,084 |  |
Amount of fully amortized intangible assets | 3,500 | 703 |
Divested | 478 |  |
Divested accumulated amortization | 379 |  |
Purchases | 260 | (506) |
Amortization of intangible assets | 755 | 852 | $ 906
Trilead Ag |  |  |
Intangible assets |  |  |
Purchases | 11 |  |
In-process research and development |  |  |
Intangible assets |  |  |
Amortizable intangible assets, gross | 0 | 159 |
Amortizable intangible assets, net | 0 | 159 |
Customer contracts, customer lists and distribution agreements |  |  |
Intangible assets |  |  |
Amortizable intangible assets, gross | 1,394 | 5,109 |
Amortizable intangible assets, accumulated amortization | (322) | (3,517) |
Finite-lived Intangible Assets, Accumulated Impairment Losses | (856) | (856) |
Amortizable intangible assets, net | $ 216 | 736 |
Weighted-Average Remaining Useful Lives | 5 years |  |
Developed and core technology and patents |  |  |
Intangible assets |  |  |
Amortizable intangible assets, gross | $ 4,190 | 4,218 |
Amortizable intangible assets, accumulated amortization | (1,232) | (1,110) |
Finite-lived Intangible Assets, Accumulated Impairment Losses | (2,138) | (2,138) |
Amortizable intangible assets, net | $ 820 | 970 |
Weighted-Average Remaining Useful Lives | 5 years |  |
Developed and core technology and patents | In-process research and development |  |  |
Intangible assets |  |  |
Reclassified | $ 159 |  |
Trade name and trade marks |  |  |
Intangible assets |  |  |
Amortizable intangible assets, gross | 178 | 231 |
Amortizable intangible assets, accumulated amortization | (21) | (57) |
Finite-lived Intangible Assets, Accumulated Impairment Losses | (109) | (109) |
Amortizable intangible assets, net | $ 48 | $ 65 |
Weighted-Average Remaining Useful Lives | 7 years |  |

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- Definition The increase (decrease) in goodwill for adjustments which may include foreign currency translation adjustments, purchase accounting adjustments, organizational realignment related adjustments, and impairment losses recognized during the period. + References No definition available. + Details
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- Definition The increase (decrease) in the recorded value of goodwill for adjustments which may include foreign currency translation adjustments, purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value, organizational realignment of the business unit related adjustments, and losses recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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