Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

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, 2015 are as follows (in millions):

											2021 and
	2016		2017		2018		2019		2020		Thereafter		Total
Contract type:
Fuel, capacity and transmission contract commitments	$	2,214	$	1,760	$	1,345	$	1,229	$	1,129	$	9,494	$	17,171
Construction commitments	1,544		25		11		3		3		5		1,591
Operating leases and easements	143		118		95		77		66		1,007		1,506
Maintenance, service and other contracts	181		264		180		188		156		805		1,774
	$	4,082	$	2,167	$	1,631	$	1,497	$	1,354	$	11,311	$	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, 2015 are as follows (in millions):

	2016		2017		2018		2019		2020		2021 and Thereafter		Total
Contract type:
Purchased electricity contracts -
commercially operable	$	168	$	71	$	70	$	67	$	68	$	401	$	845
Purchased electricity contracts -
non-commercially operable	16		102		104		104		104		1,687		2,117
Fuel contracts	862		689		558		542		496		1,720		4,867
Construction commitments	144		12		10		2		2		5		175
Transmission	105		97		91		76		55		508		932
Operating leases and easements	5		4		4		4		4		42		63
Maintenance, service and
other contracts	36		30		19		24		11		74		194
Total commitments	$	1,336	$	1,005	$	856	$	819	$	740	$	4,437	$	9,193

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, 2015, are as follows (in millions):

											2021 and
	2016		2017		2018		2019		2020		Thereafter		Total
Contract type:
Coal and natural gas for generation	$	173	$	113	$	72	$	29	$	—	$	—	$	387
Electric capacity and transmission	30		30		11		10		10		58		149
Natural gas contracts for gas operations	131		69		31		11		10		30		282
Construction commitments	535		10		—		—		—		—		545
Easements and operating leases	17		17		17		16		15		516		598
Maintenance and services contracts	47		59		71		73		73		265		588
	$	933	$	298	$	202	$	139	$	108	$	869	$	2,549

Nevada Power Company [Member]

Contractual Obligation [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule

has the following firm commitments that are not reflected on the Consolidated Balance Sheet. Minimum payments as of December 31, 2015 are as follows (in millions):

	2016		2017		2018		2019		2020		2021 and Thereafter		Total
Contract type:
Fuel and capacity contract commitments	$	612	$	478	$	330	$	328	$	330	$	4,587	$	6,665
Fuel and capacity contract commitments (not commercially operable)	—		20		23		23		30		603		699
Operating leases and easements	11		8		8		7		7		67		108
Maintenance, service and other contracts	46		116		38		37		35		109		381
Total commitments	$	669	$	622	$	399	$	395	$	402	$	5,366	$	7,853

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, 2015 are as follows (in millions):

											2021 and
	2016		2017		2018		2019		2020		Thereafter		Total
Contract type:
Fuel and capacity contract commitments	$	207	$	159	$	109	$	88	$	75	$	444	$	1,082
Operating leases and easements	6		4		3		3		3		65		84
Maintenance, service and other contracts	5		4		4		5		5		22		45
Total commitments	$	218	$	167	$	116	$	96	$	83	$	531	$	1,211