v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - SPC - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Operating Activities:    
Net income $ 2,527 $ 2,123
Adjustments to reconcile net income to net cash provided from operating activities —    
Depreciation and amortization, total 3,176 2,860
Deferred income taxes 310 453
Other, net (87) 76
Changes in certain current assets and liabilities —    
Receivables 116 (130)
Other current assets (60) 61
Accounts payable (403) (695)
Accrued compensation (459) (421)
Other current liabilities 105 (141)
Net cash provided from operating activities 4,280 3,431
Investing Activities:    
Property additions (6,639) (5,456)
Other investing activities (83) (193)
Net cash used for investing activities (6,758) (5,734)
Financing Activities:    
Increase (decrease) in notes payable, net   (150)
Increase in notes payable, net 1,415  
Distributions to noncontrolling interests (76) (66)
Payment of common stock dividends (1,579) (1,494)
Other financing activities (233) (150)
Net cash provided from financing activities 3,828 2,467
Net Change in Cash, Cash Equivalents, and Restricted Cash 1,350 164
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period 1,640 1,101
Cash, Cash Equivalents, and Restricted Cash at End of Period 2,990 1,265
Supplemental Cash Flow Information:    
Interest, net of amounts capitalized 1,472 1,287
Income taxes, net (excludes credit transfers) 146 199
Noncash transactions —    
Accrued property additions at end of period 1,409 1,091
Right-of-use assets obtained under operating leases 107 114
SOUTHERN POWER CO    
Operating Activities:    
Net income (26) 47
Adjustments to reconcile net income to net cash provided from operating activities —    
Depreciation and amortization, total 568 340
Deferred income taxes (75) (2)
Utilization of federal tax credit carryforward 130 0
Amortization of ITCs (29) (29)
Loss on damaged equipment 22 0
Other, net (9) (18)
Changes in certain current assets and liabilities —    
Receivables (47) (69)
Income taxes receivable (39) (2)
Other current assets (24) 2
Accounts payable (19) (20)
Accrued compensation (11) (11)
Other current liabilities 8 (6)
Net cash provided from operating activities 449 232
Investing Activities:    
Property additions (399) (392)
Payments pursuant to LTSAs (28) (26)
Other investing activities 10 0
Net cash used for investing activities (417) (418)
Financing Activities:    
Increase (decrease) in notes payable, net (135)  
Increase in notes payable, net   201
Proceeds — Senior notes 600 0
Redemptions — Senior notes (564) 0
Capital contributions from parent company 465 146
Capital contributions from noncontrolling interests 4 23
Distributions to noncontrolling interests (76) (66)
Payment of common stock dividends (143) (139)
Other financing activities (10) (4)
Net cash provided from financing activities 141 161
Net Change in Cash, Cash Equivalents, and Restricted Cash 173 (25)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period 105 168
Cash, Cash Equivalents, and Restricted Cash at End of Period 278 143
Supplemental Cash Flow Information:    
Interest, net of amounts capitalized 61 59
Income taxes, net (excludes credit transfers) (61) 52
Noncash transactions —    
Accrued property additions at end of period 66 60
Right-of-use assets obtained under operating leases $ 0 $ 2