v3.26.1
Consolidated Statements of Cash Flows (Unaudited) - SPPC - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities:    
Net income (loss) $ 1,114 $ 1,187
Adjustments to reconcile net income to net cash flows from operating activities:    
Allowance for equity funds (80) (66)
Deferred energy 22 (88)
Amortization of deferred energy 236 220
Other changes in regulatory assets and liabilities 9 (13)
Deferred income taxes and investment tax credits, net 333 (92)
Other, net 41 72
Changes in other operating assets and liabilities:    
Trade receivables and other assets (113) 107
Accounts payable and other liabilities (128) (161)
Net cash flows from operating activities 1,363 2,021
Cash flows from investing activities:    
Capital expenditures (2,418) (2,128)
Net cash flows from investing activities (2,358) (1,573)
Cash flows from financing activities:    
Other, net 192 (17)
Net cash flows from financing activities 3,493 925
Net change in cash and cash equivalents and restricted cash and cash equivalents 2,491 1,377
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period 1,878 1,586
Cash and cash equivalents and restricted cash and cash equivalents at end of period 4,369 2,963
SPPC    
Cash flows from operating activities:    
Net income (loss) 27 27
Adjustments to reconcile net income to net cash flows from operating activities:    
Depreciation and amortization 45 40
Allowance for equity funds (25) (10)
Deferred energy 23 34
Amortization of deferred energy (7) 0
Other changes in regulatory assets and liabilities (1) 5
Deferred income taxes and investment tax credits, net 154 (13)
Other, net 0 (1)
Changes in other operating assets and liabilities:    
Trade receivables and other assets (122) 37
Inventories (1) (12)
Accounts payable and other liabilities (272) (80)
Net cash flows from operating activities (179) 27
Cash flows from investing activities:    
Capital expenditures (251) (173)
Net cash flows from investing activities (251) (173)
Cash flows from financing activities:    
Proceeds from long-term debt 595 0
Contributions from parent 300 275
Other, net 31 (2)
Net cash flows from financing activities 926 273
Net change in cash and cash equivalents and restricted cash and cash equivalents 496 127
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period 10 24
Cash and cash equivalents and restricted cash and cash equivalents at end of period $ 506 $ 151