DEBT - Credit Facilities - Commitments, Amounts Outstanding, and Amounts Available (Details)	3 Months Ended
	Mar. 31, 2025 USD ($)
Line of Credit Facility [Line Items]
Total Commitments	$ 2,144,000,000
Total Outstanding	1,139,000,000
Total Available	1,003,000,000
Separate Bilateral Unsecured Facility
Line of Credit Facility [Line Items]
Standby letters of credit issued	30,000,000
Senior Secured Domestic Revolving Credit Facility
Line of Credit Facility [Line Items]
Total Commitments	1,900,000,000
Total Outstanding	1,050,000,000
Total Available	848,000,000
Senior Secured International Revolving Credit Facility
Line of Credit Facility [Line Items]
Total Commitments	195,000,000
Total Outstanding	67,000,000
Total Available	128,000,000
Other International Facilities
Line of Credit Facility [Line Items]
Total Commitments	49,000,000
Total Outstanding	22,000,000
Total Available	27,000,000
Standby Letters of Credit
Line of Credit Facility [Line Items]
Line of credit facility, decrease	$ 2,000,000