Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Contractual Obligation [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule

The Company has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2016 are as follows (in millions):

											2022 and
	2017		2018		2019		2020		2021		Thereafter		Total
Contract type:
Fuel, capacity and transmission contract commitments	$	2,370	$	1,606	$	1,389	$	1,208	$	1,010	$	10,053	$	17,636
Construction commitments	852		49		66		1		1		4		973
Operating leases and easements	141		122		101		87		73		1,085		1,609
Maintenance, service and other contracts	303		220		212		186		180		723		1,824
	$	3,666	$	1,997	$	1,768	$	1,482	$	1,264	$	11,865	$	22,042

PacifiCorp [Member]

Contractual Obligation [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule

PacifiCorp has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2016 are as follows (in millions):

	2017		2018		2019		2020		2021		2022 and Thereafter		Total
Contract type:
Purchased electricity contracts -
commercially operable	$	253	$	160	$	157	$	157	$	145	$	1,630	$	2,502
Purchased electricity contracts -
non-commercially operable	10		13		17		17		18		390		465
Fuel contracts	796		616		596		507		346		1,407		4,268
Construction commitments	62		46		26		4		1		4		143
Transmission	109		106		90		61		47		467		880
Operating leases and easements	5		5		5		5		4		39		63
Maintenance, service and
other contracts	53		29		31		17		20		68		218
Total commitments	$	1,288	$	975	$	922	$	768	$	581	$	4,005	$	8,539

MidAmerican Energy Company [Member]

Contractual Obligation [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule

MidAmerican Energy had the following firm commitments that are not reflected on the Balance Sheet. Minimum payments as of December 31, 2016, are as follows (in millions):

											2022 and
	2017		2018		2019		2020		2021		Thereafter		Total
Contract type:
Coal and natural gas for generation	$	141	$	73	$	40	$	—	$	—	$	—	$	254
Electric capacity and transmission	37		29		29		28		25		59		207
Natural gas contracts for gas operations	137		34		13		12		10		23		229
Construction commitments	347		2		5		—		—		—		354
Easements and operating leases	20		20		20		19		19		624		722
Maintenance and services contracts	72		90		91		92		86		210		641
	$	754	$	248	$	198	$	151	$	140	$	916	$	2,407

Nevada Power Company [Member]

Contractual Obligation [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule

Nevada Power has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2016 are as follows (in millions):

	2017		2018		2019		2020		2021		2022 and Thereafter		Total
Contract type:
Fuel, capacity and transmission contract commitments	$	697	$	445	$	352	$	355	$	358	$	5,310	$	7,517
Fuel and capacity contract commitments (not commercially operable)	7		14		29		36		37		683		806
Operating leases and easements	9		9		8		7		7		51		91
Maintenance, service and other contracts	118		39		37		37		36		75		342
Total commitments	$	831	$	507	$	426	$	435	$	438	$	6,119	$	8,756

Sierra Pacific Power Company [Member]

Contractual Obligation [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule

Sierra Pacific has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2016 are as follows (in millions):

											2022 and
	2017		2018		2019		2020		2021		Thereafter		Total
Contract type:
Fuel, capacity and transmission contract commitments	$	238	$	156	$	103	$	71	$	62	$	375	$	1,005
Fuel and capacity contract commitments (not commercially operable)	5		10		10		11		11		215		262
Operating leases and easements	4		4		3		3		3		46		63
Maintenance, service and other contracts	4		5		4		6		6		17		42
Total commitments	$	251	$	175	$	120	$	91	$	82	$	653	$	1,372