COMMITMENTS AND CONTINGENT LIABILITIES - Additional Information (Details) ¥ in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 JPY (¥)
Information Technology and Data Service Company Cloud Hosting Services
Commitments and Contingencies Disclosure [Line Items]
Outsourcing agreement, remaining term	3 years	3 years
Outsourcing agreement, aggregate remaining cost	$ 68
Management Consulting and Technology Services Company Application Maintenance and Development Services
Commitments and Contingencies Disclosure [Line Items]
Outsourcing agreement, remaining term	5 years	5 years
Outsourcing agreement, aggregate remaining cost	$ 299	¥ 48,200
Information Technology and Software Company Application Maintenance and Development Services Agreement
Commitments and Contingencies Disclosure [Line Items]
Outsourcing agreement, remaining term	6 years	6 years
Outsourcing agreement, aggregate remaining cost	$ 42	¥ 6,800