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SEGMENT INFORMATION (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Nov. 30, 2012
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Nov. 30, 2011
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Nov. 30, 2012
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Nov. 30, 2011
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| Revenues Included for Management Reporting Not Recognized in Consolidated Statements of Operations (Narrative) [Abstract] | ||||||||||||||
| New software licenses and cloud software subscriptions revenues | $ 12 | [1] | $ 31 | [1] | ||||||||||
| Software license updates and product support revenues | 4 | [1] | 10 | [1] | 8 | [1] | 24 | [1] | ||||||
| Hardware systems support revenues | 3 | [1] | 9 | [1] | 8 | [1] | 19 | [1] | ||||||
| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 9,113 | [2] | 8,811 | [2] | 17,322 | [2] | 17,209 | [2] | ||||||
| Expenses | 3,250 | 3,340 | 6,274 | 6,682 | ||||||||||
| Margin | 5,863 | [3] | 5,471 | [3] | 11,048 | [3] | 10,527 | [3] | ||||||
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New software licenses and cloud software subscriptions [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 2,398 | [2] | 2,044 | [2] | 3,987 | [2] | 3,537 | [2] | ||||||
| Sales and distribution expenses | 1,263 | 1,174 | 2,341 | 2,318 | ||||||||||
| Margin | 1,135 | [3] | 870 | [3] | 1,646 | [3] | 1,219 | [3] | ||||||
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Software license updates and product support [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 4,264 | [2] | 3,996 | [2] | 8,408 | [2] | 8,032 | [2] | ||||||
| Software license updates and product support expenses | 276 | 268 | 545 | 542 | ||||||||||
| Margin | 3,988 | [3] | 3,728 | [3] | 7,863 | [3] | 7,490 | [3] | ||||||
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Total software business [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 6,662 | [2] | 6,040 | [2] | 12,395 | [2] | 11,569 | [2] | ||||||
| Expenses | 1,539 | 1,442 | 2,886 | 2,860 | ||||||||||
| Margin | 5,123 | [3] | 4,598 | [3] | 9,509 | [3] | 8,709 | [3] | ||||||
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Hardware systems products [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 734 | 953 | 1,513 | 1,981 | ||||||||||
| Hardware systems products expenses | 366 | 468 | 750 | 941 | ||||||||||
| Sales and distribution expenses | 213 | 271 | 431 | 537 | ||||||||||
| Margin | 155 | [3] | 214 | [3] | 332 | [3] | 503 | [3] | ||||||
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Hardware systems support [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 590 | [2] | 634 | [2] | 1,169 | [2] | 1,290 | [2] | ||||||
| Hardware systems support expenses | 222 | 248 | 435 | 520 | ||||||||||
| Margin | 368 | [3] | 386 | [3] | 734 | [3] | 770 | [3] | ||||||
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Total hardware systems business [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 1,324 | [2] | 1,587 | [2] | 2,682 | [2] | 3,271 | [2] | ||||||
| Expenses | 801 | 987 | 1,616 | 1,998 | ||||||||||
| Margin | 523 | [3] | 600 | [3] | 1,066 | [3] | 1,273 | [3] | ||||||
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Total services business [Member]
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| Segment Reporting Information [Line Items] | ||||||||||||||
| Revenues | 1,127 | [2] | 1,184 | [2] | 2,245 | [2] | 2,369 | [2] | ||||||
| Services expenses | 910 | 911 | 1,772 | 1,824 | ||||||||||
| Margin | $ 217 | [3] | $ 273 | [3] | $ 473 | [3] | $ 545 | [3] | ||||||
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