Leases Leases (Notes)

12 Months Ended

Dec. 31, 2019

Lessee, Lease, Description [Line Items]

Lessee, Finance Leases [Text Block]

Leases

The following table summarizes the Company's leases recorded on the Consolidated Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	525
Finance leases	504
Total right-of-use assets	$	1,029
Lease liabilities:
Operating leases	$	577
Finance leases	519
Total lease liabilities	$	1,096

The following table summarizes the Company's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	623
Operating	170
Finance:
Amortization	16
Interest	41
Short-term	7
Total lease costs	$	857
Weighted-average remaining lease term (years):
Operating leases	7.6
Finance leases	28.8
Weighted-average discount rate:
Operating leases	5.2		%
Finance leases	8.6		%

The following table summarizes the Company's supplemental cash flow information relating to leases (in millions):

	Year Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	(153	)
Operating cash flows from finance leases	(42		)
Financing cash flows from finance leases	(19		)
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases	$	82
Finance leases	14

The Company has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	147		$	71		$	218
2021	126			77			203
2022	102			70			172
2023	73			59			132
2024	50			59			109
Thereafter	202			725			927
Total undiscounted lease payments	700			1,061			1,761
Less - amounts representing interest	(123		)	(542		)	(665		)
Lease liabilities	$	577		$	519		$	1,096

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	147	$	69	$	216
2020	128		68		196
2021	110		73		183
2022	87		67		154
2023	61		56		117
Thereafter	159		772		931
Total undiscounted lease payments	$	692	$	1,105	$	1,797

(1)     Amounts included for comparability and accounted for in accordance with ASC 840, "Leases".

Lessee, Operating Leases [Text Block]

Leases

The following table summarizes the Company's leases recorded on the Consolidated Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	525
Finance leases	504
Total right-of-use assets	$	1,029
Lease liabilities:
Operating leases	$	577
Finance leases	519
Total lease liabilities	$	1,096

The following table summarizes the Company's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	623
Operating	170
Finance:
Amortization	16
Interest	41
Short-term	7
Total lease costs	$	857
Weighted-average remaining lease term (years):
Operating leases	7.6
Finance leases	28.8
Weighted-average discount rate:
Operating leases	5.2		%
Finance leases	8.6		%

The following table summarizes the Company's supplemental cash flow information relating to leases (in millions):

	Year Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	(153	)
Operating cash flows from finance leases	(42		)
Financing cash flows from finance leases	(19		)
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases	$	82
Finance leases	14

The Company has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	147		$	71		$	218
2021	126			77			203
2022	102			70			172
2023	73			59			132
2024	50			59			109
Thereafter	202			725			927
Total undiscounted lease payments	700			1,061			1,761
Less - amounts representing interest	(123		)	(542		)	(665		)
Lease liabilities	$	577		$	519		$	1,096

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	147	$	69	$	216
2020	128		68		196
2021	110		73		183
2022	87		67		154
2023	61		56		117
Thereafter	159		772		931
Total undiscounted lease payments	$	692	$	1,105	$	1,797

(1)     Amounts included for comparability and accounted for in accordance with ASC 840, "Leases".

PacifiCorp [Member]

Lessee, Lease, Description [Line Items]

Lessee, Finance Leases [Text Block]

Leases

The following table summarizes PacifiCorp's leases recorded on the Consolidated Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	12
Finance leases	19
Total right-of-use assets	$	31
Lease liabilities:
Operating leases	$	12
Finance leases	19
Total lease liabilities	$	31

The following table summarizes PacifiCorp's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	77
Operating	3
Finance:
Amortization	1
Interest	2
Short-term	2
Total lease costs	$	85
Weighted-average remaining lease term (years):
Operating leases	14.0
Finance leases	9.1
Weighted-average discount rate:
Operating leases	3.7		%
Finance leases	10.6		%

Cash payments associated with operating and finance lease liabilities approximated lease cost for the year ended December 31, 2019.

PacifiCorp has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	2		$	3		$	5
2021	2			7			9
2022	2			3			5
2023	2			2			4
2024	1			2			3
Thereafter	7			14			21
Total undiscounted lease payments	16			31			47
Less - amounts representing interest	(4		)	(12		)	(16		)
Lease liabilities	$	12		$	19		$	31

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	3	$	4	$	7
2020	3		4		7
2021	3		7		10
2022	2		3		5
2023	2		2		4
Thereafter	7		16		23
Total undiscounted lease payments	$	20	$	36	$	56

(1)     Amounts included for comparability and accounted for in accordance with ASC 840, "Leases".

Lessee, Operating Leases [Text Block]

Leases

The following table summarizes PacifiCorp's leases recorded on the Consolidated Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	12
Finance leases	19
Total right-of-use assets	$	31
Lease liabilities:
Operating leases	$	12
Finance leases	19
Total lease liabilities	$	31

The following table summarizes PacifiCorp's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	77
Operating	3
Finance:
Amortization	1
Interest	2
Short-term	2
Total lease costs	$	85
Weighted-average remaining lease term (years):
Operating leases	14.0
Finance leases	9.1
Weighted-average discount rate:
Operating leases	3.7		%
Finance leases	10.6		%

Cash payments associated with operating and finance lease liabilities approximated lease cost for the year ended December 31, 2019.

PacifiCorp has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	2		$	3		$	5
2021	2			7			9
2022	2			3			5
2023	2			2			4
2024	1			2			3
Thereafter	7			14			21
Total undiscounted lease payments	16			31			47
Less - amounts representing interest	(4		)	(12		)	(16		)
Lease liabilities	$	12		$	19		$	31

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	3	$	4	$	7
2020	3		4		7
2021	3		7		10
2022	2		3		5
2023	2		2		4
Thereafter	7		16		23
Total undiscounted lease payments	$	20	$	36	$	56

(1)     Amounts included for comparability and accounted for in accordance with ASC 840, "Leases".

Nevada Power Company [Member]

Lessee, Lease, Description [Line Items]

Lessee, Finance Leases [Text Block]

Leases

The following table summarizes Nevada Power's leases recorded on the Consolidated Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	13
Finance leases	441
Total right-of-use assets	$	454
Lease liabilities:
Operating leases	$	17
Finance leases	454
Total lease liabilities	$	471

The following table summarizes Nevada Power's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	434
Operating	3
Finance:
Amortization	13
Interest	37
Total lease costs	$	487
Weighted-average remaining lease term (years):
Operating leases	7.5
Finance leases	30.6
Weighted-average discount rate:
Operating leases	4.5		%
Finance leases	8.7		%

The following table summarizes Nevada Power's supplemental cash flow information relating to leases (in millions):

	Year Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	(3	)
Operating cash flows from finance leases	(37		)
Financing cash flows from finance leases	(14		)
Right-of-use assets obtained in exchange for lease liabilities:
Finance leases	$	9

Nevada Power has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	3		$	60		$	63
2021	3			64			67
2022	3			62			65
2023	2			51			53
2024	2			52			54
Thereafter	7			664			671
Total undiscounted lease payments	20			953			973
Less - amounts representing interest	(3		)	(499		)	(502		)
Lease liabilities	$	17		$	454		$	471

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	3	$	59	$	62
2020	3		59		62
2021	3		61		64
2022	3		60		63
2023	2		50		52
Thereafter	10		709		719
Total undiscounted lease payments	$	24	$	998	$	1,022

(1)     Amounts included for comparability and accounted for in accordance with ASC Topic 840, "Leases".

Operating and Finance Lease Obligations

Nevada Power's lease obligation primarily consists of a transmission line One Nevada Transmission Line ("ON Line"), which was placed in-service on December 31, 2013. Nevada Power and Sierra Pacific, collectively the ("Nevada Utilities"), entered into a long-term transmission use agreement, in which the Nevada Utilities have a 25% interest and Great Basin Transmission South, LLC has a 75% interest. The Nevada Utilities' share of the long-term transmission use agreement and ownership interest is split at 95% for Nevada Power and 5% for Sierra Pacific. In December 2019, the PUCN ordered the Nevada Utilities to complete the procedures changing the ownership split to 75% for Nevada Power and 25% for Sierra Pacific, effective January 1, 2020. The term of the lease is 41 years with the agreement ending December 31, 2054. Total ON Line finance lease obligations of $385 million and $395 million were included on the Consolidated Balance Sheets as of December 31, 2019 and 2018, respectively. See Note 2 for further discussion of Nevada Power's other lease obligations.

Lessee, Operating Leases [Text Block]

Leases

The following table summarizes Nevada Power's leases recorded on the Consolidated Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	13
Finance leases	441
Total right-of-use assets	$	454
Lease liabilities:
Operating leases	$	17
Finance leases	454
Total lease liabilities	$	471

The following table summarizes Nevada Power's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	434
Operating	3
Finance:
Amortization	13
Interest	37
Total lease costs	$	487
Weighted-average remaining lease term (years):
Operating leases	7.5
Finance leases	30.6
Weighted-average discount rate:
Operating leases	4.5		%
Finance leases	8.7		%

The following table summarizes Nevada Power's supplemental cash flow information relating to leases (in millions):

	Year Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	(3	)
Operating cash flows from finance leases	(37		)
Financing cash flows from finance leases	(14		)
Right-of-use assets obtained in exchange for lease liabilities:
Finance leases	$	9

Nevada Power has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	3		$	60		$	63
2021	3			64			67
2022	3			62			65
2023	2			51			53
2024	2			52			54
Thereafter	7			664			671
Total undiscounted lease payments	20			953			973
Less - amounts representing interest	(3		)	(499		)	(502		)
Lease liabilities	$	17		$	454		$	471

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	3	$	59	$	62
2020	3		59		62
2021	3		61		64
2022	3		60		63
2023	2		50		52
Thereafter	10		709		719
Total undiscounted lease payments	$	24	$	998	$	1,022

(1)     Amounts included for comparability and accounted for in accordance with ASC Topic 840, "Leases".

Operating and Finance Lease Obligations

Nevada Power's lease obligation primarily consists of a transmission line One Nevada Transmission Line ("ON Line"), which was placed in-service on December 31, 2013. Nevada Power and Sierra Pacific, collectively the ("Nevada Utilities"), entered into a long-term transmission use agreement, in which the Nevada Utilities have a 25% interest and Great Basin Transmission South, LLC has a 75% interest. The Nevada Utilities' share of the long-term transmission use agreement and ownership interest is split at 95% for Nevada Power and 5% for Sierra Pacific. In December 2019, the PUCN ordered the Nevada Utilities to complete the procedures changing the ownership split to 75% for Nevada Power and 25% for Sierra Pacific, effective January 1, 2020. The term of the lease is 41 years with the agreement ending December 31, 2054. Total ON Line finance lease obligations of $385 million and $395 million were included on the Consolidated Balance Sheets as of December 31, 2019 and 2018, respectively. See Note 2 for further discussion of Nevada Power's other lease obligations.

Sierra Pacific Power Company [Member]

Lessee, Lease, Description [Line Items]

Lessee, Finance Leases [Text Block]

Leases

The following table summarizes Sierra Pacific's leases recorded on the Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	17
Finance leases	43
Total right-of-use assets	$	60
Lease liabilities:
Operating leases	$	17
Finance leases	45
Total lease liabilities	$	62

The following table summarizes Sierra Pacific's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	69
Operating	1
Finance:
Amortization	2
Interest	2
Total lease costs	$	74
Weighted-average remaining lease term (years):
Operating leases	26.3
Finance leases	20.9
Weighted-average discount rate:
Operating leases	5.0		%
Finance leases	7.1		%

The following table summarizes Sierra Pacific's supplemental cash flow information relating to leases (in millions):

	Year Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	(3	)
Operating cash flows from finance leases	(3		)
Financing cash flows from finance leases	(3		)
Right-of-use assets obtained in exchange for lease liabilities:
Finance leases	$	5

Sierra Pacific has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	2		$	6		$	8
2021	2			6			8
2022	1			6			7
2023	1			6			7
2024	1			5			6
Thereafter	26			46			72
Total undiscounted lease payments	33			75			108
Less - amounts representing interest	(16		)	(30		)	(46		)
Lease liabilities	$	17		$	45		$	62

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	2	$	6	$	8
2020	2		4		6
2021	2		5		7
2022	1		4		5
2023	1		4		5
Thereafter	28		47		75
Total undiscounted lease payments	$	36	$	70	$	106

(1)     Amounts included for comparability and accounted for in accordance with ASC Topic 840, "Leases".

Operating and Finance Lease Obligations

Sierra Pacific's operating and finance lease obligations consist mainly of ON Line and Truckee-Carson Irrigation District ("TCID"). ON Line was placed in-service on December 31, 2013. Sierra Pacific and Nevada Power, collectively the ("Nevada Utilities"), entered into a long-term transmission use agreement, in which the Nevada Utilities have a 25% interest and Great Basin Transmission South, LLC has a 75% interest. The Nevada Utilities' share of the long-term transmission use agreement and ownership interest is split at 95% for Nevada Power and 5% for Sierra Pacific. In December 2019, the PUCN ordered the Nevada Utilities to complete the procedures changing the ownership split to 75% for Nevada Power and 25% for Sierra Pacific, effective January 1, 2020. The term of the lease is 41 years with the agreement ending December 31, 2054. In 1999, Sierra Pacific entered into a 50-year agreement with TCID to lease electric distribution facilities. Total finance lease obligations of $35 million and $21 million were included on the Consolidated Balance Sheets as of December 31, 2019 and 2018, respectively, for these leases. See Note 2 for further discussion of Sierra Pacific's remaining lease obligations.

Lessee, Operating Leases [Text Block]

Leases

The following table summarizes Sierra Pacific's leases recorded on the Balance Sheet (in millions):

	As of
	December 31, 2019
Right-of-use assets:
Operating leases	$	17
Finance leases	43
Total right-of-use assets	$	60
Lease liabilities:
Operating leases	$	17
Finance leases	45
Total lease liabilities	$	62

The following table summarizes Sierra Pacific's lease costs (in millions):

	Year Ended
	December 31, 2019
Variable	$	69
Operating	1
Finance:
Amortization	2
Interest	2
Total lease costs	$	74
Weighted-average remaining lease term (years):
Operating leases	26.3
Finance leases	20.9
Weighted-average discount rate:
Operating leases	5.0		%
Finance leases	7.1		%

The following table summarizes Sierra Pacific's supplemental cash flow information relating to leases (in millions):

	Year Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	(3	)
Operating cash flows from finance leases	(3		)
Financing cash flows from finance leases	(3		)
Right-of-use assets obtained in exchange for lease liabilities:
Finance leases	$	5

Sierra Pacific has the following remaining lease commitments as of (in millions):

	December 31, 2019
	Operating			Finance			Total
2020	$	2		$	6		$	8
2021	2			6			8
2022	1			6			7
2023	1			6			7
2024	1			5			6
Thereafter	26			46			72
Total undiscounted lease payments	33			75			108
Less - amounts representing interest	(16		)	(30		)	(46		)
Lease liabilities	$	17		$	45		$	62

	December 31, 2018(1)
	Operating		Capital		Total
2019	$	2	$	6	$	8
2020	2		4		6
2021	2		5		7
2022	1		4		5
2023	1		4		5
Thereafter	28		47		75
Total undiscounted lease payments	$	36	$	70	$	106

(1)     Amounts included for comparability and accounted for in accordance with ASC Topic 840, "Leases".

Operating and Finance Lease Obligations

Sierra Pacific's operating and finance lease obligations consist mainly of ON Line and Truckee-Carson Irrigation District ("TCID"). ON Line was placed in-service on December 31, 2013. Sierra Pacific and Nevada Power, collectively the ("Nevada Utilities"), entered into a long-term transmission use agreement, in which the Nevada Utilities have a 25% interest and Great Basin Transmission South, LLC has a 75% interest. The Nevada Utilities' share of the long-term transmission use agreement and ownership interest is split at 95% for Nevada Power and 5% for Sierra Pacific. In December 2019, the PUCN ordered the Nevada Utilities to complete the procedures changing the ownership split to 75% for Nevada Power and 25% for Sierra Pacific, effective January 1, 2020. The term of the lease is 41 years with the agreement ending December 31, 2054. In 1999, Sierra Pacific entered into a 50-year agreement with TCID to lease electric distribution facilities. Total finance lease obligations of $35 million and $21 million were included on the Consolidated Balance Sheets as of December 31, 2019 and 2018, respectively, for these leases. See Note 2 for further discussion of Sierra Pacific's remaining lease obligations.