BUSINESS OPTIMIZATION CHARGES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Expected additional pre-tax costs	$ 15
Charges	47	$ 110
Employee termination costs
Restructuring Cost and Reserve [Line Items]
Charges	36	87
Employee termination costs | New Operating Model
Restructuring Cost and Reserve [Line Items]
Charges	24	78
Contract termination and other costs
Restructuring Cost and Reserve [Line Items]
Charges	6	3
Asset impairments
Restructuring Cost and Reserve [Line Items]
Charges	$ 5	$ 20