EMPLOYEE RETIREMENT PLANS - Pre-tax Expense (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pre-tax expense		$ 406	$ 51	$ 492	$ 84
Settlements		$ 101
Reduction in pension expense	$ 7
Amount reclassified
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement loss				447
Defined-contribution plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pre-tax expense			39	57	46
Defined-benefit pension plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pre-tax expense			$ 12	$ 435	$ 38