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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Asset Retirement Obligations
Xcel Energy’s AROs were as follows:
(Millions 
of Dollars)		Jan. 1, 2022
Amounts Incurred (a)
Accretion
Cash Flow Revisions (b)
Dec. 31, 2022
Electric
Nuclear$2,056 $— $104 $— $2,160 
Wind478 25 19 (8)514 
Steam, hydro and other production288 34 12 14 348 
Distribution47 — 1 — 48 
Natural gas
Transmission and distribution271 — 12 23 306 
Miscellaneous8 — — (7)1 
Common
Miscellaneous1 — — — 1 
Non-utility
Miscellaneous2 — — — 2 
Total liability$3,151 $59 $148 $22 $3,380 
(a)Amounts incurred related to the wind farms placed in service in 2022 for NSP-Minnesota (Dakota Range and Rock Aetna) and steam production pond remediation costs for PSCo.
(b)In 2022, AROs were revised for changes in timing and estimates of cash flows. Revisions in steam, hydro and other production AROs were primarily related to changes in cost estimates for remediation of ash containment facilities. Changes in gas transmission and distribution AROs were primarily related to changes in labor rates coupled with increased gas line mileage and number of services.
(Millions 
of Dollars)		Jan. 1, 2021
Amounts Incurred (a)
Accretion
Cash Flow Revisions (b)
Dec. 31, 2021
Electric
Nuclear$1,957 $— $99 $— $2,056 
Wind360 101 17 — 478 
Steam, hydro and other production264 6 10 8 288 
Distribution46 — 1 — 47 
Natural gas
Transmission and distribution252 — 10 9 271 
Miscellaneous3 — — 5 8 
Common
Miscellaneous1 — — — 1 
Non-utility
Miscellaneous1 — 1 — 2 
Total liability$2,884 $107 $138 $22 $3,151 
(a)Amounts incurred related to the wind farms placed in service in 2021 for NSP-Minnesota (Blazing Star 2, Mower and Freeborn) and removal of a utility scale battery asset in NSP-Minnesota.
(b)In 2021, AROs were revised for changes in timing and estimates of cash flows. Revisions in steam, hydro and other production AROs were primarily related to changes in cost estimates for remediation of ash containment facilities. Changes in gas transmission and distribution AROs were primarily related to changes in labor rates coupled with increased gas line mileage and number of services.
Assets and Liabilities, Lessee [Table Text Block]
Operating lease ROU assets:
(Millions of Dollars)Dec. 31, 2022Dec. 31, 2021
PPAs$1,669 $1,656 
Other244 225 
Gross operating lease ROU assets1,913 1,881 
Accumulated amortization(709)(590)
Net operating lease ROU assets$1,204 $1,291 
Finance lease ROU assets:
(Millions of Dollars)Dec. 31, 2022Dec. 31, 2021
Gas storage facilities$160 $201 
Gas pipeline21 21 
Gross finance lease ROU assets181 222 
Accumulated amortization(64)(97)
Net finance lease ROU assets$117 $125 
Lease, Cost [Table Text Block]
Components of lease expense:
(Millions of Dollars)202220212020
Operating leases
PPA capacity payments$241 $251 $238 
Other operating leases (a)
39 36 26 
Total operating lease expense (b)
$280 $287 $264 
Finance leases
Amortization of ROU assets$4 $7 $7 
Interest expense on lease liability16 17 18 
Total finance lease expense$20 $24 $25 
(a)Includes short-term lease expense of $6 million for 2022 and $5 million for 2021 and 2020.
(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.
Finance Lease, Liability, Maturity [Table Text Block]
Commitments under operating and finance leases as of Dec. 31, 2022:
(Millions of Dollars)
PPA (a) (b)
Operating
Leases
Other Operating
Leases
Total
Operating
Leases
Finance
 Leases (c)
2023$231 $33 $264 $10 
2024238 28 266 10 
2025217 23 240 10 
2026161 18 179 9 
202790 18 108 8 
Thereafter326 74 400 181 
Total minimum obligation1,263 194 1,457 228 
Interest component of obligation(170)(32)(202)(162)
Present value of minimum obligation$1,093 162 1,255 66 
Less current portion(217)(2)
Noncurrent operating and finance lease liabilities$1,038 $64 
Weighted-average remaining lease term in years7.937.8
(a)Amounts do not include PPAs accounted for as executory contracts and/or contingent payments, such as energy payments on renewable PPAs.
(b)PPA operating leases contractually expire at various dates through 2033.
(c)Excludes certain amounts related to Xcel Energy’s 50% ownership interest in WYCO.
Estimated Future Payments for Capacity and Energy Pursuant to Purchased Power Agreements
At Dec. 31, 2022, the estimated future payments for capacity and energy that the utility subsidiaries of Xcel Energy are obligated to purchase pursuant to these executory contracts, subject to availability, were as follows:
(Millions of Dollars)Capacity
Energy (a)
2023$77 $50 
202472 45 
202529 51 
202610 48 
20277 55 
Thereafter3 28 
Total$198 $277 
(a)Excludes contingent energy payments for renewable energy PPAs.
Estimated Minimum Purchases Under Fuel Contracts
Estimated minimum purchases under these contracts as of Dec. 31, 2022:
(Millions of Dollars)CoalNuclear fuelNatural gas supplyNatural gas supply and transportation
2023$628 $144 $684 $316 
2024343 112 8 290 
202590 158 1 276 
202653 37 — 276 
202755 155 — 225 
Thereafter2 194 — 607 
Total$1,171 $800 $693 $1,990