v3.25.0.1
LEASES - Maturities of Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Operating leases:    
2025 $ 239  
2026 212  
2027 190  
2028 170  
2029 138  
Thereafter 1,255  
Total 2,204  
Less: Present value discount 751  
Operating lease obligations 1,453 $ 1,490
Finance leases:    
2025 28  
2026 27  
2027 26  
2028 25  
2029 25  
Thereafter 290  
Total 421  
Less: Present value discount 134  
Finance lease obligations 287 298
Alabama Power    
Operating leases:    
2025 18  
2026 15  
2027 12  
2028 9  
2029 7  
Thereafter 56  
Total 117  
Less: Present value discount 27  
Operating lease obligations 90 93
Finance leases:    
2025 2  
2026 1  
2027 1  
2028 0  
2029 0  
Thereafter 0  
Total 4  
Less: Present value discount 0  
Finance lease obligations 4 5
Georgia Power    
Operating leases:    
2025 228  
2026 224  
2027 223  
2028 217  
2029 196  
Thereafter 511  
Total 1,599  
Less: Present value discount 271  
Operating lease obligations 1,328 875
Finance leases:    
2025 39  
2026 41  
2027 41  
2028 42  
2029 42  
Thereafter 139  
Total 344  
Less: Present value discount 83  
Finance lease obligations 261 240
Mississippi Power    
Operating leases:    
2025 4  
2026 3  
2027 1  
2028 0  
2029 0  
Thereafter 1  
Total 9  
Less: Present value discount 1  
Operating lease obligations 8 9
Finance leases:    
2025 2  
2026 2  
2027 1  
2028 1  
2029 1  
Thereafter 9  
Total 16  
Less: Present value discount 2  
Finance lease obligations 14 16
Southern Power    
Operating leases:    
2025 31  
2026 29  
2027 29  
2028 29  
2029 30  
Thereafter 978  
Total 1,126  
Less: Present value discount 586  
Operating lease obligations 540 546
Finance leases:    
2025 0  
2026 0  
2027 0  
2028 0  
2029 0  
Thereafter 0  
Total 0  
Less: Present value discount 0  
Finance lease obligations 0 0
Southern Company Gas    
Operating leases:    
2025 12  
2026 9  
2027 4  
2028 3  
2029 4  
Thereafter 15  
Total 47  
Less: Present value discount 6  
Operating lease obligations 41 51
Finance leases:    
2025 0  
2026 0  
2027 0  
2028 0  
2029 0  
Thereafter 0  
Total 0  
Less: Present value discount 0  
Finance lease obligations $ 0 $ 0