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DERIVATIVES - Outstanding Swap Contracts (Details) - USD ($) $ in Millions | Jul. 31, 2021 | May 01, 2021 | Oct. 31, 2020 | Aug. 03, 2015
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Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 1,233 |  |  |
Interest Rate Swap Due August 15, 2022 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 33 |  |  |
Derivative, forward interest rate | 1.795% |  |  |
Interest Rate Swap Due October 31, 2022 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 100 |  |  |
Derivative, forward interest rate | 2.8915% |  |  |
Interest Rate Swap Due October 31, 2022 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.4678% |  |  |
Interest Rate Swap Due October 31, 2022 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.5255% |  |  |
Interest Rate Swap Due March 31, 2023 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 150 |  |  |
Derivative, forward interest rate | 2.895% |  |  |
Interest Rate Swap Due March 31, 2023 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.5292% |  |  |
Interest Rate Swap Due September 30, 2023 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.8315% |  |  |
Interest Rate Swap Due October 31, 2023 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 100 |  |  |
Derivative, forward interest rate | 2.921% |  |  |
Interest Rate Swap Due March 28, 2024 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 100 |  |  |
Derivative, forward interest rate | 2.477% |  |  |
Interest Rate Swap Due March 28, 2024 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 100 |  |  |
Derivative, forward interest rate | 2.542% |  |  |
Interest Rate Swap Due October 31, 2024 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 100 |  |  |
Derivative, forward interest rate | 2.848% |  |  |
Interest Rate Swap Due October 31, 2024 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 100 |  |  |
Derivative, forward interest rate | 2.501% |  |  |
Interest Rate Swap Due October 31, 2024 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.521% |  |  |
Interest Rate Swap Due October 22, 2025 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.955% |  |  |
Interest Rate Swap Due October 22, 2025 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.959% |  |  |
Interest Rate Swap Due October 22, 2025 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.958% |  |  |
Interest Rate Swap Due October 22, 2025 |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount | $ 50 |  |  |
Derivative, forward interest rate | 2.5558% |  |  |
Interest rate swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, notional amount |  | $ 250 | $ 504 |
Quarterly notional principal reduction |  |  |  | $ 1

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