PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Net Pension Plan Assets, by Fair Value Hierarchy (Parenthetical) (Details) - Pension - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Future
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 5	$ 8
Derivative, notional amount	1,126	449
Derivative instruments, net | U.S. | Qualified and Registered Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5	8
Derivative instruments, net | Net Asset Value | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	856	1,116
Accrued liabilities | U.S. | Qualified and Registered Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 38	$ 9