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STOCK-BASED COMPENSATION PLANS - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 86	$ 83	$ 101
Stock-based compensation costs, net of amounts capitalized	43	44	54
401(k) savings plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	41	38	36
EDCP & DCPD
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	6	1	7
Restricted stock units | Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	32	39	55
Restricted stock | Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 7	$ 5	$ 3

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