Borrowings and Other Financing Instruments Preferred Stock (Details) - $ / shares	Dec. 31, 2025	Dec. 31, 2024
Preferred Stock [Abstract]
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Par or Stated Value Per Share	$ 1.00	$ 1.00
Preferred Stock, Shares Outstanding	0	0