RESTRUCTURING - Restructuring Expenses Included in Consolidated Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Restructuring Cost and Reserve [Line Items]
Total Restructuring	$ 32	$ 27	$ 59	$ 60
Strategic and Operational Efficiency Restructuring Program
Restructuring Cost and Reserve [Line Items]
Total Restructuring	32	27	59	60
Cost incurred to date	212		212
Personnel Costs Including Severance and Other Related Costs \| Strategic and Operational Efficiency Restructuring Program
Restructuring Cost and Reserve [Line Items]
Total Restructuring	32	23	57	54
Cost incurred to date	203		203
Real estate related costs \| Strategic and Operational Efficiency Restructuring Program
Restructuring Cost and Reserve [Line Items]
Total Restructuring	0	2	1	4
Cost incurred to date	5		5
Internally developed software-related charges \| Strategic and Operational Efficiency Restructuring Program
Restructuring Cost and Reserve [Line Items]
Total Restructuring	0	$ 2	1	$ 2
Cost incurred to date	$ 4		$ 4

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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