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