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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Oct. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
VALUATION AND QUALIFYING ACCOUNTS | SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
Description |  | Balance at Beginning of Period |  | Additions Charged to Expenses or Other Accounts* |  | Deductions Credited to Expenses or Other Accounts** |  | Balance at End of Period
|  | (in millions)
2020 |  |  |  |  |  |  |  |
Tax valuation allowance |  | $ | 240 |  |  | $ | 12 |  |  | $ | (5 | ) |  | $ | 247 |
2019 |  |  |  |  |  |  |  |
Tax valuation allowance |  | $ | 79 |  |  | $ | 169 |  |  | $ | (8 | ) |  | $ | 240 |
2018 |  |  |  |  |  |  |  |
Tax valuation allowance |  | $ | 63 |  |  | $ | 18 |  |  | $ | (2 | ) |  | $ | 79 |
* Additions include current-year additions charged to expense and current-year build due to increases in net deferred tax assets, return to provision true-ups, other adjustments and Other Comprehensive Income ("OCI") impact to deferred taxes. As disclosed in the deferred tax assets and liabilities table in Note 6, "Income taxes," we have increased the 2019 net operating loss deferred tax asset balance by $167 million. There is an offsetting increase in the 2019 valuation allowance, which is reflected in the table above. This change is the result of the correction of an error that has no impact on the balance sheet or statement of operations. Accordingly, we have concluded that this 2019 error is not material. ** Deductions include current-year releases credited to expense and current-year reductions due to decreases in net deferred tax assets, return to provision true-ups, other adjustments and OCI impact to deferred taxes.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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