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RETIREMENT AND POSTRETIREMENT BENEFIT PLANS - FAIR VALUE OF PENSION PLAN ASSETS (Details) - Pension Benefits - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Defined Benefit Plan Disclosure |  |
Fair value of plan assets, net of net payables | $ 1,076 | $ 1,196
Cash and cash equivalents |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 19 | 38
Government securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 63 | 65
Corporate bonds |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 36 | 39
Equity securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 46 | 138
Other |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 76 | 55
Net payables |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 6 | 3
Fair Value, Inputs, Level 1, 2 and 3 |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 240 | 335
Level 1 |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 128 | 241
Fair value of plan assets, net of net payables | 128 | 241
Level 1 | Cash and cash equivalents |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 19 | 38
Level 1 | Government securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 63 | 65
Level 1 | Corporate bonds |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 1 | Equity securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 46 | 138
Level 1 | Other |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 2 |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 112 | 94
Fair value of plan assets, net of net payables | 112 | 94
Level 2 | Cash and cash equivalents |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 2 | Government securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 2 | Corporate bonds |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 36 | 39
Level 2 | Equity securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 2 | Other |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 76 | 55
Level 3 |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Fair value of plan assets, net of net payables | 0 | 0
Level 3 | Cash and cash equivalents |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 3 | Government securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 3 | Corporate bonds |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 3 | Equity securities |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Level 3 | Other |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | 0 | 0
Investments measured at net asset value |  |
Defined Benefit Plan Disclosure |  |
Fair value of plan assets | $ 836 | $ 861

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