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RESTRUCTURING ACTIVITIES Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2022 | Feb. 28, 2021 | Feb. 28, 2022 | Feb. 28, 2021
Restructuring reserve [Line Items] |  |  |  |  |
Restructuring expenses |  | $ 19 | $ 66 | $ 89 | $ 337
Fiscal 2022 Oracle Restructuring [Member] |  |  |  |  |
Restructuring reserve [Line Items] |  |  |  |  |
Total estimated restructuring costs | [1] | 353 |  | 353 |
Restructuring expenses |  |  |  | 117 |
Remaining expenses to incur |  | 236 |  | $ 236 |
Expected completion date |  |  |  | May 31, 2024 |
Fiscal 2022 Oracle Restructuring [Member] | Maximum [Member] |  |  |  |  |
Restructuring reserve [Line Items] |  |  |  |  |
Total estimated restructuring costs |  | $ 353 |  | $ 353 |
[1] | Restructuring costs recorded for individual line items primarily related to employee severance costs.

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