| **DEBT - Summary of Long-Term Debt (Details) - USD ($) $ in Millions** |         | 3 Months Ended | 12 Months Ended |         |        |
|------------------------------------------------------------------------|---------|----------------|-----------------|---------|--------|
||
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 3,740        |            | $ 3,945 |   |   |
| Total debt, net                                                        |    | 0              |            | 29      |   |   |
| Less: unamortized discounts and issuance costs                         |    | (28)           |            | (24)    |   |   |
| Total debt, net                                                        |    | 3,712          |            | 3,950   |   |   |
| Less: current portion of long-term debt, net                           |    | (304)          |            | (554)   |   |   |
| Total long-term debt, net                                              |    | 3,408          |            | 3,396   |   |   |
| Variable-rate term loans                                               |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | 550            |            | 305     |   |   |
| Variable-rate term loans | Term loan, 3-year tranche, due May 29, 2018 |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 0            |            | $ 36    |   |   |
| Debt instrument term                                                   |    | 3 years        |            | 3 years |   |   |
| Variable-rate term loans | Term loan, 5-year tranche, due May 29, 2020 |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 0            | $ 1,300         | $ 269   |   |   |
| Debt instrument term                                                   | 5 years |           | 5 years         | 5 years |   |   |
| Variable-rate term loans | Floating rate notes, due February 27, 2019  |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | 300            |            | $ 0     |   |   |
| Variable-rate term loans | Floating rate notes, due April 30, 2020     |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | 250            |            | 0       |   |   |
| Fixed-rate debt                                                        |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | 3,190          |            | 3,640   |   |   |
| Fixed-rate debt | 1.999% notes, due April 27, 2018                     |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 0            |            | $ 500   |   |   |
| Debt interest rate percentage                                          |    | 1.999%         |            | 1.999%  |   |   |
| Fixed-rate debt | 2.7% notes, due April 27, 2020                       |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 400          |            | $ 400   |   |   |
| Debt interest rate percentage                                          |    | 2.70%          |            | 2.70%   |   |   |
| Fixed-rate debt | 4.4% notes, due December 15, 2020                    |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 0            |            | $ 400   |   |   |
| Debt interest rate percentage                                          |    |           |            | 4.40%   | 4.40%  |   |
| Fixed-rate debt | 5.55% notes, due October 1, 2021                     |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | 0              |            | $ 400   |   |   |
| Debt interest rate percentage                                          |    |           |            | 5.55%   | 5.55%  |   |
| Fixed-rate debt | 3.832% notes, due April 27, 2025                     |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 600          |            | $ 600   |   |   |
| Debt interest rate percentage                                          |    | 3.832%         |            | 3.832%  |   |   |
| Fixed-rate debt | 7.0% debentures, due January 15, 2026                |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 100          |            | $ 100   |   |   |
| Debt interest rate percentage                                          |    | 7.00%          |            | 7.00%   |   |   |
| Fixed-rate debt | 6.35% debentures, due February 1, 2028               |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 26           |            | $ 26    |   |   |
| Debt interest rate percentage                                          |    | 6.35%          |            | 6.35%   |   |   |
| Fixed-rate debt | 4.400% notes, due June 15, 2028                      |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 850          |            | $ 0     |   |   |
| Debt interest rate percentage                                          |    | 4.40%          |            |    |   | 4.40% |
| Fixed-rate debt | 4.854% notes, due April 27, 2035                     |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 400          |            | $ 400   |   |   |
| Debt interest rate percentage                                          |    | 4.854%         |            | 4.854%  |   |   |
| Fixed-rate debt | 6.15% notes, due December 15, 2040                   |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 300          |            | $ 300   |   |   |
| Debt interest rate percentage                                          |    | 6.15%          |            | 6.15%   |   |   |
| Fixed-rate debt | 5.054% notes, due April 27, 2045                     |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 500          |            | $ 500   |   |   |
| Debt interest rate percentage                                          |    | 5.054%         |            | 5.054%  |   |   |
| Other                                                                  |    |           |            |    |   |   |
| **Summary of Long-term debt**                                          |    |           |            |    |   |   |
| Total debt                                                             |    | $ 14           |            | $ 14    |   |   |

| X                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Net
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.
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| - Definition
Contractual interest rate for funds borrowed, under the debt agreement.
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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
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| - Definition
Amount, after accumulated amortization, of debt premium.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
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| - Definition
Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.
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| - Definition
Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
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