GOODWILL AND INTANGIBLES - Summary of Identifiable Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Intangible Asset, Finite-Lived [Line Items]
Gross Carrying Amount	$ 3,139	$ 2,867
Accumulated Amortization	(1,403)	(1,283)
Net Carrying Amount	$ 1,736	$ 1,584
Contractual backlog
Intangible Asset, Finite-Lived [Line Items]
Weighted Average Remaining Useful Lives (in Years)	3 months 18 days	9 months 18 days
Gross Carrying Amount	$ 169	$ 169
Accumulated Amortization	(168)	(168)
Net Carrying Amount	$ 1	$ 1
Customer relationships
Intangible Asset, Finite-Lived [Line Items]
Weighted Average Remaining Useful Lives (in Years)	8 years 2 months 12 days	8 years 8 months 12 days
Gross Carrying Amount	$ 2,114	$ 1,897
Accumulated Amortization	(963)	(869)
Net Carrying Amount	$ 1,151	$ 1,028
Trade names and trademarks
Intangible Asset, Finite-Lived [Line Items]
Weighted Average Remaining Useful Lives (in Years)	10 years 1 month 6 days	10 years 7 months 6 days
Gross Carrying Amount	$ 856	$ 801
Accumulated Amortization	(272)	(246)
Net Carrying Amount	$ 584	$ 555