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Commitment and Contingencies (Tables)
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]    
Finance Lease, Liability, Fiscal Year Maturity  
Commitments under operating and finance leases as of June 30, 2022:
(Millions of Dollars)PPA Operating
Leases		Other Operating
Leases		Total Operating
Leases
Finance
 Leases (a)
Total minimum obligation$1,303 $171 $1,474 $236 
Interest component of obligation(186)(31)(217)(165)
Present value of minimum obligation$1,117 140 1,257 71 
Less current portion(210)(4)
Noncurrent operating and finance lease liabilities$1,047 $67 
(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)20222021
Operating leases
PPA capacity payments$60 $56 
Other operating leases (a)
9 9 
Total operating lease expense (b)
$69 $65 
Finance leases
Amortization of ROU assets$1 $2 
Interest expense on lease liability4 4 
Total finance lease expense$5 $6 
(a)Includes short-term lease expense of $2 million for 2022 and 2021.
(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)20222021
Operating leases
PPA capacity payments$123 $114 
Other operating leases (a)
20 17 
Total operating lease expense (b)
$143 $131 
Finance leases
Amortization of ROU assets$2 $4 
Interest expense on lease liability8 8 
Total finance lease expense$10 $12 
(a)Includes short-term lease expense of $3 million for 2022 and 2021.
(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.