Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

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						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2019			2018			2019			2018
Pension:
Service cost	$	4		$	5		$	12		$	15
Interest cost	27			26			82			78
Expected return on plan assets	(38		)	(41		)	(115		)	(123		)
Net amortization	8			8			24			23
Net periodic benefit cost (credit)	$	1		$	(2	)	$	3		$	(7	)
Other postretirement:
Service cost	$	1		$	1		$	6		$	6
Interest cost	6			7			20			19
Expected return on plan assets	(10		)	(9		)	(30		)	(31		)
Net amortization	—			(3		)	(3		)	(9		)
Net periodic benefit credit	$	(3	)	$	(4	)	$	(7	)	$	(15	)

Foreign Operations

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

	Three-Month Periods						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2019			2018			2019			2018
Service cost	$	3		$	5		$	11		$	15
Interest cost	13			14			39			42
Expected return on plan assets	(24		)	(25		)	(74		)	(78		)
Settlement	21			12			21			36
Net amortization	9			9			27			38
Net periodic benefit cost	$	22		$	15		$	24		$	53

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						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2019			2018			2019			2018
Pension:
Service cost	$	—		$	—		$	—		$	—
Interest cost	11			11			33			32
Expected return on plan assets	(17		)	(18		)	(50		)	(54		)
Net amortization	3			3			9			10
Net periodic benefit credit	$	(3	)	$	(4	)	(8		)	(12		)
Other postretirement:
Service cost	$	—		$	—		$	1		$	1
Interest cost	3			3			9			9
Expected return on plan assets	(6		)	(5		)	(16		)	(16		)
Net amortization	1			(1		)	1			(4		)
Net periodic benefit credit	$	(2	)	$	(3	)	(5		)	(10		)

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						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2019			2018			2019			2018
Pension:
Service cost	$	2		$	2		$	5		$	6
Interest cost	7			7			22			21
Expected return on plan assets	(10		)	(11		)	(31		)	(33		)
Net amortization	—			1			—			2
Net periodic benefit credit	$	(1	)	$	(1	)	$	(4	)	$	(4	)
Other postretirement:
Service cost	$	1		$	1		$	4		$	4
Interest cost	2			2			7			6
Expected return on plan assets	(3		)	(3		)	(9		)	(10		)
Net amortization	(1		)	(1		)	(3		)	(3		)
Net periodic benefit credit	$	(1	)	$	(1	)	$	(1	)	$	(3	)

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
	September 30,		December 31,
	2019		2018
Qualified Pension Plan:
Other long-term liabilities	$	26	$	26
Non-Qualified Pension Plans:
Other current liabilities	1		1
Other long-term liabilities	9		9
Other Postretirement Plans:
Other long-term liabilities	1		1

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
	September 30,		December 31,
	2019		2018
Qualified Pension Plan:
Other long-term liabilities	$	18	$	19
Non-Qualified Pension Plans:
Other current liabilities	1		1
Other long-term liabilities	7		7
Other Postretirement Plans:
Other long-term liabilities	13		13