EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure
Discount rate for 17-year amortization period of unfunded liability for frozen defined benefit plan (percent)	8.85%
Estimated funding by employer in next fiscal year	$ 0
Defined contribution plan costs	$ 1,000,000,000	$ 875,000,000	$ 805,000,000
Assumed healthcare plan pre age	65 years
Assumed healthcare plan post age	65 years
Projected benefit obligation	$ 4,000,000,000
Aggregate fair value of plan assets	$ 3,900,000,000
Weighted average expected long-term rate of return on plan assets (percent)	7.00%	8.98%	8.97%
Restructuring charges	$ (124,000,000)	$ (19,000,000)	$ 8,219,000,000
Profit sharing	563,000,000	108,000,000	0
Voluntary early retirement and separation programs
Defined Benefit Plan Disclosure
Restructuring charges		3,400,000,000
Voluntary early retirement and separation programs | Special termination benefits
Defined Benefit Plan Disclosure
Special termination benefit charge		1,300,000,000
Other Postretirement and Postemployment Benefits
Defined Benefit Plan Disclosure
Special termination benefit charge	$ 0	$ 0	1,260,000,000
Special termination benefits			$ 1,300,000,000
Growth-seeking assets | Minimum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)	20.00%
Growth-seeking assets | Maximum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)	40.00%
Income-generating assets | Minimum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)	25.00%
Income-generating assets | Maximum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)	35.00%
Risk-diversifying assets | Minimum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)	35.00%
Risk-diversifying assets | Maximum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)	45.00%