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Commitment and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2025
Commitments and Contingencies Disclosure [Abstract]  
Finance Lease, Liability, Fiscal Year Maturity
Commitments under operating and finance leases as of June 30, 2025:
(Millions of Dollars)PPA Operating
Leases		Other Operating
Leases		Total Operating
Leases
Finance
 Leases (a)
Total minimum obligation$954 $526 $1,480 $204 
Interest component of obligation(120)(204)(324)(143)
Present value of minimum obligation$834 $322 1,156 61 
Less current portion(211)(2)
Noncurrent operating and finance lease liabilities$945 $59 
(a)Excludes certain amounts related to Xcel Energy’s 50% ownership interest in WYCO.
Lease, Cost
Components of lease expense:
Three Months Ended June 30
(Millions of Dollars)20252024
Operating leases
PPA capacity payments$54 $57 
Other operating leases (a)
10 11 
Total operating lease expense (b)
$64 $68 
Finance leases
Amortization of ROU assets$1 $1 
Interest expense on lease liability3 3 
Total finance lease expense$4 $4 
(a)Includes immaterial short-term lease expense.
(b)PPA capacity payments are included in electric fuel and purchased power on the consolidated statements of income. Expense for other operating leases is included in O&M expense and electric fuel and purchased power.
Six Months Ended June 30
(Millions of Dollars)20252024
Operating leases
PPA capacity payments$111 $115 
Other operating leases (a)
23 22 
Total operating lease expense (b)
$134 $137 
Finance leases
Amortization of ROU assets$2 $2 
Interest expense on lease liability7 7 
Total finance lease expense$9 $9 
(a)Includes immaterial short-term lease expense.
(b)PPA capacity payments are included in electric fuel and purchased power on the consolidated statements of income. Expense for other operating leases is included in O&M expense and electric fuel and purchased power.