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RESTRUCTURING AND OTHER RELATED COSTS - ROLLFORWARD (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2024 | Jan. 31, 2024 | Apr. 30, 2024
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | $ 11 | $ 36 | $ 36
Restructuring Charges | 1 | 3 | 4
Restructuring Reserve, Settled without Cash |  | (1) |
Payments for Restructuring | (6) | (27) |
Restructuring Reserve, Ending Balance | 6 | 11 | 6
Employee Severance |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | 8 | 31 | 31
Restructuring Charges | 1 | 2 |
Payments for Restructuring | (5) | (25) |
Restructuring Reserve, Ending Balance | 4 | 8 | 4
Facility Closing |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | 3 | 5 | 5
Restructuring Charges | 0 | 1 |
Restructuring Reserve, Settled without Cash |  | (1) |
Payments for Restructuring | (1) | (2) |
Restructuring Reserve, Ending Balance | $ 2 | $ 3 | $ 2

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