Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of Operating and Finance Lease Right-of-Use Assets

Finance lease ROU assets:

(Millions of Dollars)	June 30, 2019
Gas storage facilities	$	201
Gas pipeline	21
Gross finance lease ROU assets	222
Accumulated amortization	(80		)
Net finance lease ROU assets	$	142

Operating lease ROU assets:

(Millions of Dollars)	June 30, 2019
PPAs	$	1,642
Other	201
Gross operating lease ROU assets	1,843
Accumulated amortization	(80		)
Net operating lease ROU assets	$	1,763

Schedule of Components of Lease Expense

Components of lease expense:

(Millions of Dollars)	Three Months Ended June 30, 2019		Six Months Ended June 30, 2019
Operating leases
PPA capacity payments	$	53	$	105
Other operating leases (a)	8		17
Total operating lease expense (b)	$	61	$	122
Finance leases
Amortization of ROU assets	$	2	$	3
Interest expense on lease liability	5		9
Total finance lease expense	$	7	$	12

^(a)  Includes short-term lease expense of $2 million for three months ended June 30, 2019 and $3 million for six months ended June 30, 2019.

^(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.

Schedule of Maturity of Operating Lease Liabilities

Future commitments under operating and finance leases as of June 30, 2019:

(Millions of Dollars)	PPA (a) (b) Operating Leases			Other Operating Leases			Total Operating Leases			Finance  Leases (c)
2019	$	118		$	12		$	130		$	6
2020	237			25			262			14
2021	243			24			267			14
2022	226			27			253			12
2023	218			21			239			12
Thereafter	959			136			1,095			220
Total minimum obligation	2,001			245			2,246			278
Interest component of obligation	(355		)	(55		)	(410		)	(195		)
Present value of minimum obligation	$	1,646		$	190		1,836			83
Less current portion							(189		)	(4		)
Noncurrent operating and finance lease liabilities							$	1,647		$	79
Weighted-average remaining lease term in years							9.7			37.2

^(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.

Future commitments under operating and finance leases as of Dec. 31, 2018:

(Millions of Dollars)	PPA (a) (b) Operating Leases		Other Operating Leases		Total Operating Leases		Finance Leases (c)
2019	$	207	$	32	$	239	$	14
2020	208		26		234		14
2021	210		25		235		14
2022	197		24		221		12
2023	186		22		208		12
Thereafter	883		154		1,037		220
Total minimum obligation							286
Interest component of obligation							(201		)
Present value of minimum obligation							$	85

^(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.

Schedule of Maturity of Finance Lease Liabilities

Future commitments under operating and finance leases as of June 30, 2019:

(Millions of Dollars)	PPA (a) (b) Operating Leases			Other Operating Leases			Total Operating Leases			Finance  Leases (c)
2019	$	118		$	12		$	130		$	6
2020	237			25			262			14
2021	243			24			267			14
2022	226			27			253			12
2023	218			21			239			12
Thereafter	959			136			1,095			220
Total minimum obligation	2,001			245			2,246			278
Interest component of obligation	(355		)	(55		)	(410		)	(195		)
Present value of minimum obligation	$	1,646		$	190		1,836			83
Less current portion							(189		)	(4		)
Noncurrent operating and finance lease liabilities							$	1,647		$	79
Weighted-average remaining lease term in years							9.7			37.2

^(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.

Future commitments under operating and finance leases as of Dec. 31, 2018:

(Millions of Dollars)	PPA (a) (b) Operating Leases		Other Operating Leases		Total Operating Leases		Finance Leases (c)
2019	$	207	$	32	$	239	$	14
2020	208		26		234		14
2021	210		25		235		14
2022	197		24		221		12
2023	186		22		208		12
Thereafter	883		154		1,037		220
Total minimum obligation							286
Interest component of obligation							(201		)
Present value of minimum obligation							$	85

^(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.