POSTRETIREMENT BENEFIT PLANS - Amounts Recorded in Statements of Financial Position (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Amounts Recorded in Consolidated Statements of Financial Position
Non-current compensation and benefits	$ (5,583)	$ (5,782)
Pension Plans | U.S. Plans
Amounts Recorded in Consolidated Statements of Financial Position
All other non-current assets	11	11
Current compensation and benefits	(172)	(173)
Non-current compensation and benefits	(3,702)	(3,716)
Net amount recorded	(3,863)	(3,878)
Pension Plans | International Plans
Amounts Recorded in Consolidated Statements of Financial Position
All other non-current assets	642	701
Current compensation and benefits	(18)	(17)
Non-current compensation and benefits	(305)	(336)
Net amount recorded	319	348
Other Postretirement Benefits Plan
Amounts Recorded in Consolidated Statements of Financial Position
All other non-current assets	0	0
Current compensation and benefits	(135)	(130)
Non-current compensation and benefits	(881)	(1,003)
Net amount recorded	$ (1,016)	$ (1,133)