v3.7.0.1

Stockholders' Equity - Components of AOCI (Details) - USD ($) shares in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 30, 2017 | Apr. 30, 2016 | Apr. 30, 2017 | Apr. 30, 2016 | May 24, 2016 | Oct. 13, 2015
Components of accumulated other comprehensive loss, net of taxes |  |  |  |  |  |
Balance at beginning of period |  |  | $ 31,518,000,000 |  |  |
Balance at end of period | $ 29,047,000,000 |  | $ 29,047,000,000 |  |  |
Share Repurchase program |  |  |  |  |  |
Stock Repurchase Program |  |  |  |  |  |
Stock repurchase program authorized amount |  |  |  |  | $ 3,000,000,000.0 | $ 3,000,000,000.0
Common stock retired (in shares) |  |  | 2.1 |  |  |
Repurchases of common stock recorded as a reduction to stockholders' equity |  |  | $ 39,000,000 |  |  |
Share repurchase authorization remaining | 2,000,000,000 |  | $ 2,000,000,000 |  |  |
ASR Agreement |  |  |  |  |  |
Stock Repurchase Program |  |  |  |  |  |
Common stock retired (in shares) |  |  | 59.0 |  |  |
Repurchases of common stock recorded as a reduction to stockholders' equity |  |  | $ 1,300,000,000 |  |  |
Change in net unrealized (losses) gains on available-for-sale securities: |  |  |  |  |  |
Components of accumulated other comprehensive loss, net of taxes |  |  |  |  |  |
Balance at beginning of period |  |  | 54,000,000 |  |  |
Transfer related to the Everett Transaction |  |  | (9,000,000) |  |  |
Other comprehensive (loss) income before reclassifications | (4,000,000) | $ 0 | (18,000,000) | $ 3,000,000 |  |
Reclassifications of (gains) loss into earnings | 0 | (4,000,000) | 0 | 2,000,000 |  |
Balance at end of period | 27,000,000 |  | 27,000,000 |  |  |
Change in net unrealized losses on cash flow hedges: |  |  |  |  |  |
Components of accumulated other comprehensive loss, net of taxes |  |  |  |  |  |
Balance at beginning of period |  |  | 35,000,000 |  |  |
Transfer related to the Everett Transaction |  |  | 0 |  |  |
Other comprehensive (loss) income before reclassifications | 8,000,000 | $ (160,000,000) | 113,000,000 | $ (33,000,000) |  |
Reclassifications of (gains) loss into earnings |  |  | (201,000,000) |  |  |
Balance at end of period | (53,000,000) |  | (53,000,000) |  |  |
Unrealized components of defined benefit plans |  |  |  |  |  |
Components of accumulated other comprehensive loss, net of taxes |  |  |  |  |  |
Balance at beginning of period |  |  | (5,642,000,000) |  |  |
Transfer related to the Everett Transaction |  |  | 1,820,000,000 |  |  |
Other comprehensive (loss) income before reclassifications |  |  | 465,000,000 |  |  |
Reclassifications of (gains) loss into earnings |  |  | 152,000,000 |  |  |
Balance at end of period | (3,205,000,000) |  | (3,205,000,000) |  |  |
Change in cumulative translation adjustment |  |  |  |  |  |
Components of accumulated other comprehensive loss, net of taxes |  |  |  |  |  |
Balance at beginning of period |  |  | (1,046,000,000) |  |  |
Transfer related to the Everett Transaction |  |  | 768,000,000 |  |  |
Other comprehensive (loss) income before reclassifications |  |  | (35,000,000) |  |  |
Reclassifications of (gains) loss into earnings |  |  | 0 |  |  |
Balance at end of period | (313,000,000) |  | (313,000,000) |  |  |
Accumulated other comprehensive loss |  |  |  |  |  |
Components of accumulated other comprehensive loss, net of taxes |  |  |  |  |  |
Balance at beginning of period |  |  | (6,599,000,000) |  |  |
Transfer related to the Everett Transaction |  |  | 2,579,000,000 |  |  |
Other comprehensive (loss) income before reclassifications |  |  | 525,000,000 |  |  |
Reclassifications of (gains) loss into earnings |  |  | (49,000,000) |  |  |
Balance at end of period | $ (3,544,000,000) |  | $ (3,544,000,000) |  |  |

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