v3.26.1
CONDENSED STATEMENTS OF CASH FLOWS - PSO - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:    
Depreciation and Amortization $ 1,817 $ 1,687
Deferred Income Taxes 332 (54)
Allowance for Equity Funds Used During Construction (145) (114)
Mark-to-Market of Risk Management Contracts (123) (241)
Property Taxes 238 241
Deferred Fuel Over/Under-Recovery, Net 31 (41)
Change in Other Noncurrent Assets (628) (440)
Change in Other Noncurrent Liabilities 581 41
Changes in Certain Components of Working Capital:    
Accounts Receivable, Net (62) (176)
Fuel, Materials and Supplies (162) 114
Accounts Payable 408 287
Accrued Taxes, Net (397) (469)
Other Current Assets (27) 11
Other Current Liabilities (123) (171)
Net Cash Flows from Operating Activities 3,421 2,671
INVESTING ACTIVITIES    
Construction Expenditures (5,606) (4,020)
Acquisitions of Generation Facilities (1,315) (1,359)
Other Investing Activities (7) (3)
Net Cash Flows Used for Investing Activities (6,602) (5,347)
FINANCING ACTIVITIES    
Issuance of Long-term Debt 5,045 3,163
Retirement of Long-term Debt (1,578) (1,324)
Other Financing Activities (60) (22)
Net Cash Flows from Financing Activities 3,360 2,709
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash 179 33
Cash, Cash Equivalents and Restricted Cash at Beginning of Period 268 246
Cash, Cash Equivalents and Restricted Cash at End of Period 447 279
SUPPLEMENTARY INFORMATION    
Cash Paid for Interest, Net of Capitalized Amounts 1,083 946
Construction Expenditures Included in Current Liabilities as of June 30, 2,005 1,059
PUBLIC SERVICE COMPANY OF OKLAHOMA    
OPERATING ACTIVITIES    
Net Income 69 91
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:    
Depreciation and Amortization 147 136
Deferred Income Taxes 34 40
Allowance for Equity Funds Used During Construction (5) (6)
Mark-to-Market of Risk Management Contracts (1) (73)
Property Taxes (37) (32)
Deferred Fuel Over/Under-Recovery, Net 6 (74)
Change in Other Regulatory Assets (6) (25)
Change in Other Noncurrent Assets (26) 3
Change in Other Noncurrent Liabilities 151 (8)
Changes in Certain Components of Working Capital:    
Accounts Receivable, Net (83) (39)
Fuel, Materials and Supplies (21) 3
Accounts Payable 114 121
Accrued Taxes, Net (19) 45
Other Current Assets (11) (16)
Other Current Liabilities (34) (1)
Net Cash Flows from Operating Activities 278 165
INVESTING ACTIVITIES    
Construction Expenditures (615) (325)
Change in Advances to Affiliates, Net 0 232
Acquisitions of Generation Facilities 0 (1,359)
Other Investing Activities 3 1
Net Cash Flows Used for Investing Activities (612) (1,451)
FINANCING ACTIVITIES    
Capital Contribution from Parent 113 300
Issuance of Long-term Debt 0 794
Change in Advances from Affiliates, Net 223 320
Retirement of Long-term Debt 0 (125)
Other Financing Activities (1) (1)
Net Cash Flows from Financing Activities 335 1,288
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash 1 2
Cash, Cash Equivalents and Restricted Cash at Beginning of Period 2 2
Cash, Cash Equivalents and Restricted Cash at End of Period 3 4
SUPPLEMENTARY INFORMATION    
Cash Paid for Interest, Net of Capitalized Amounts 86 47
Construction Expenditures Included in Current Liabilities as of June 30, $ 184 $ 91