v3.26.1
SHORT-TERM BORROWINGS, LONG-TERM DEBT, AND AVAILABLE CREDIT FACILITIES (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Line of Credit Facility [Line Items]    
Short-term borrowings $ 23,000,000 $ 24,000,000
Long-term debt 4,000,000,000 4,003,000,000
Letters of credit outstanding 24,000,000  
Remaining borrowing capacity, uncommitted 134,000,000  
Level 2    
Line of Credit Facility [Line Items]    
Long-term debt due within one year 4,099,000,000 $ 4,154,000,000
Senior Secured Revolving Facility Matures October 2030 | Line of Credit | Revolving Credit Facility    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity 1,250,000,000  
Proceeds from lines of credit 0  
Senior Secured Credit Facilities | Line of Credit | Letter of Credit    
Line of Credit Facility [Line Items]    
Letters of credit outstanding $ 12,000,000