v3.8.0.1

Stockholders' Equity - Changes and Reclassifications Related to Other Comprehensive Income (Loss), Net of Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income, net of taxes | $ 159 | $ 1 | $ 99 | $ 476
Net unrealized gains (losses) on available-for-sale securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income (loss) before reclassifications |  |  | 1 |
Gains reclassified into earnings |  |  | (9) |
Change in net unrealized (losses) gains on cash flow hedges |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income (loss) before reclassifications |  |  | (85) |
Gains reclassified into earnings |  |  | 105 |
Change in unrealized components of defined benefit plans |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income (loss) before reclassifications |  |  | 1 |
Gains reclassified into earnings |  |  | 85 |
Change in cumulative translation adjustment |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income (loss) before reclassifications |  |  | 1 |
Gains reclassified into earnings |  |  | 0 |
Reclassifications of gains (losses) into earnings | Net unrealized gains (losses) on available-for-sale securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income (loss) before reclassifications | 0 | (4) | 1 | (18)
Gains reclassified into earnings | (17) | 0 | (9) | 0
Other comprehensive income, net of taxes | (17) | (4) | (8) | (18)
Reclassifications of gains (losses) into earnings | Change in net unrealized (losses) gains on cash flow hedges |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income (loss) before reclassifications | 71 | 8 | (85) | 113
Gains reclassified into earnings | 79 | (70) | 105 | (201)
Other comprehensive income, net of taxes | 150 | (62) | 20 | (88)
Reclassifications of gains (losses) into earnings | Change in unrealized components of defined benefit plans |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income, net of taxes | 48 | 78 | 86 | 617
Reclassifications of gains (losses) into earnings | Gains arising during the period |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Gains reclassified into earnings | 0 | 10 | 1 | 465
Reclassifications of gains (losses) into earnings | Amortization of actuarial loss and prior service benefit |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Gains reclassified into earnings | 46 | 72 | 90 | 163
Reclassifications of gains (losses) into earnings | Curtailments, settlements and other |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income, net of taxes | 2 | (4) | (5) | (11)
Reclassifications of gains (losses) into earnings | Change in cumulative translation adjustment |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other comprehensive income, net of taxes | $ (22) | $ (11) | $ 1 | $ (35)

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