DERIVATIVES - Summary of Effect of Derivatives on 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
Derivatives designated as hedging instruments: | Interest rate swaps | Cash flow hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	$ (1)	$ 7	$ (1)	$ 5
Derivatives designated as hedging instruments: | Cross-currency contracts | Cash flow hedges: | Income Statement Location: us-gaap:InterestIncomeExpenseNonoperatingNet
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	(1)	2	(1)	1
Derivatives designated as hedging instruments: | Cross-currency contracts | Cash flow hedges: | Income Statement Location: us-gaap:InvestmentIncomeNet
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	(1)	9	(3)	14
Derivatives designated as hedging instruments: | Cross-currency contracts | Fair value hedges: | Income Statement Location: us-gaap:InterestIncomeExpenseNonoperatingNet
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	0	(2)	(1)	(1)
Derivatives designated as hedging instruments: | Cross-currency contracts | Fair value hedges: | Income Statement Location: us-gaap:InvestmentIncomeNet
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	(6)	44	(16)	61
Derivatives designated as hedging instruments: | Cross-currency contracts | Net investment hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	(2)	3	(6)	2
Derivatives designated as hedging instruments: | Foreign currency forward contracts | Cash flow hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	0	0	0	0
Derivatives not designated as hedge instruments: | Foreign currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of expense (income) recognized in income	$ 0	$ 0	$ 0	$ 0