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Stockholders' Deficit - Schedule of Changes and Reclassifications Related to Other Comprehensive Income, Net of Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
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Jan. 31, 2019 | Jan. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Unrealized losses arising during the period | $ (92) |
(Gains) losses reclassified into earnings | (149) |
Other comprehensive loss, net of taxes | (242) | $ (411)
Change in unrealized gains (losses) on available-for-sale securities |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Unrealized losses arising during the period | 0 | (2)
(Gains) losses reclassified into earnings | 0 | (5)
Other comprehensive loss, net of taxes | 0 | (7)
Net unrealized gains (losses) on cash flow hedges |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Unrealized losses arising during the period | (87) | (481)
(Gains) losses reclassified into earnings | (157) | 67
Other comprehensive loss, net of taxes | (244) | (414)
Tax provision on amortization of actuarial loss and prior service benefit |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
(Gains) losses reclassified into earnings | 8 | 9
Settlements and other |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
(Gains) losses reclassified into earnings | (1) | 1
Change in unrealized components of defined benefit plans |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Unrealized losses arising during the period | 0 |
(Gains) losses reclassified into earnings | 8 |
Other comprehensive loss, net of taxes | 7 | 10
Change in cumulative translation adjustment |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Unrealized losses arising during the period | (5) |
(Gains) losses reclassified into earnings | 0 |
Other comprehensive loss, net of taxes | $ (5) | $ 0

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