Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2020

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

Domestic Operations

Net periodic benefit cost (credit) for the domestic pension and other postretirement benefit plans included the following components (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2020			2019			2020			2019
Pension:
Service cost	$	4		$	4		$	7		$	8
Interest cost	23			28			46			55
Expected return on plan assets	(35		)	(39		)	(70		)	(77		)
Net amortization	8			7			17			16
Net periodic benefit cost	$	—		$	—		$	—		$	2
Other postretirement:
Service cost	$	3		$	3		$	4		$	5
Interest cost	4			8			10			14
Expected return on plan assets	(7		)	(10		)	(16		)	(20		)
Net amortization	(3		)	(1		)	(4		)	(3		)
Net periodic benefit credit	$	(3	)	$	—		$	(6	)	$	(4	)

Foreign Operations

Net periodic benefit (credit) cost for the United Kingdom pension plan included the following components (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2020			2019			2020			2019
Service cost	$	4		$	4		$	8		$	8
Interest cost	10			13			20			26
Expected return on plan assets	(25		)	(25		)	(50		)	(50		)
Net amortization	11			9			21			18
Net periodic benefit (credit) cost	$	—		$	1		$	(1	)	$	2

PacifiCorp [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

Net periodic benefit credit for the pension and other postretirement benefit plans included the following components (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2020			2019			2020			2019
Pension:
Service cost	$	—		$	—		$	—		$	—
Interest cost	9			11			18			22
Expected return on plan assets	(14		)	(16		)	(28		)	(33		)
Net amortization	4			3			9			6
Net periodic benefit credit	$	(1	)	$	(2	)	(1		)	(5		)
Other postretirement:
Service cost	$	1		$	1		$	1		$	1
Interest cost	2			3			5			6
Expected return on plan assets	(3		)	(5		)	(7		)	(10		)
Net amortization	—			—			—			—
Net periodic benefit credit	$	—		$	(1	)	(1		)	(3		)

MidAmerican Energy Company [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

Net periodic benefit credit for the plans of MidAmerican Energy and the aforementioned affiliates included the following components (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2020			2019			2020			2019
Pension:
Service cost	$	1		$	1		$	2		$	3
Interest cost	6			8			12			15
Expected return on plan assets	(10		)	(11		)	(20		)	(21		)
Net amortization	1			—			1			—
Net periodic benefit credit	$	(2	)	$	(2	)	$	(5	)	$	(3	)
Other postretirement:
Service cost	$	1		$	2		$	2		$	3
Interest cost	1			3			3			5
Expected return on plan assets	(3		)	(3		)	(6		)	(6		)
Net amortization	(2		)	(1		)	(3		)	(2		)
Net periodic benefit (credit) cost	$	(3	)	$	1		$	(4	)	$	—

Nevada Power Company [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Amounts Recognized in Balance Sheet

Amounts payable to NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions):

	As of
	June 30,		December 31,
	2020		2019
Qualified Pension Plan:
Other long-term liabilities	$	18	$	18
Non-Qualified Pension Plans:
Other current liabilities	1		1
Other long-term liabilities	9		9
Other Postretirement Plans:
Other long-term liabilities	2		2

Sierra Pacific Power Company [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Amounts Recognized in Balance Sheet

Amounts payable to NV Energy are included on the Balance Sheets and consist of the following (in millions):

	As of
	June 30,		December 31,
	2020		2019
Qualified Pension Plan:
Other long-term liabilities	$	3	$	4
Non-Qualified Pension Plans:
Other current liabilities	1		1
Other long-term liabilities	7		8
Other Postretirement Plans:
Other long-term liabilities	7		7