Risk Management and Hedging Activities (Tables) - PacifiCorp [Member]

12 Months Ended

Dec. 31, 2019

Derivative [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following table, which reflects master netting arrangements and excludes contracts that have been designated as normal under the normal purchases or normal sales exception afforded by GAAP, summarizes the fair value of PacifiCorp's derivative contracts, on a gross basis, and reconciles those amounts to the amounts presented on a net basis on the Consolidated Balance Sheets (in millions):

	Other						Other			Other
	Current			Other			Current			Long-term
	Assets			Assets			Liabilities			Liabilities			Total
As of December 31, 2019:
Not designated as hedging contracts(1):
Commodity assets	$	15		$	2		$	4		$	—		$	21
Commodity liabilities	(3		)	—			(31		)	(50		)	(84		)
Total	12			2			(27		)	(50		)	(63		)
Total derivatives	12			2			(27		)	(50		)	(63		)
Cash collateral receivable	—			—			20			27			47
Total derivatives - net basis	$	12		$	2		$	(7	)	$	(23	)	$	(16	)
As of December 31, 2018:
Not designated as hedging contracts(1):
Commodity assets	$	36		$	4		$	10		$	1		$	51
Commodity liabilities	(9		)	(1		)	(67		)	(71		)	(148		)
Total	27			3			(57		)	(70		)	(97		)
Total derivatives	27			3			(57		)	(70		)	(97		)
Cash collateral (payable) receivable	(2		)	—			16			45			59
Total derivatives - net basis	$	25		$	3		$	(41	)	$	(25	)	$	(38	)

(1) PacifiCorp's commodity derivatives are generally included in rates and as of December 31, 2019 and 2018, a regulatory asset of $62 million and $96 million, respectively, was recorded related to the net derivative liability of $63 million and $97 million, respectively.

Schedule of Regulatory Assets (Liabilities), Net, Unrealized Loss (Gain), Net, on Derivative Contracts [Table Text Block]

The following table reconciles the beginning and ending balances of PacifiCorp's regulatory assets and summarizes the pre-tax gains and losses on commodity derivative contracts recognized in regulatory assets, as well as amounts reclassified to earnings for the years ended December 31 (in millions):

	2019			2018			2017
Beginning balance	$	96		$	101		$	73
Changes in fair value recognized in regulatory assets	(37		)	12			47
Net (losses) gains reclassified to operating revenue	(34		)	(68		)	9
Net gains (losses) reclassified to energy costs	37			51			(28		)
Ending balance	$	62		$	96		$	101

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

The following table summarizes the net notional amounts of outstanding commodity derivative contracts with fixed price terms that comprise the mark-to-market values as of December 31 (in millions):

	Unit of
	Measure	2019		2018
Electricity sales	Megawatt hours	(2	)	(6	)
Natural gas purchases	Decatherms	129		117