Recent Financing Transactions Recent Financings Transactions - Credit Facilities (Details) $ in Millions	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)
BHE [Member] | Unsecured credit facility, $1.4 billion, expiring June 2017 [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity replaced		$ 1,400
BHE [Member] | Unsecured credit facility, $600 million, expiring June 2017 [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity replaced		600
BHE [Member] | Unsecured credit facility, $2 billion, expiring June 2019 [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		2,000
PacifiCorp [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt to capitalization ratio	0.65
PacifiCorp [Member] | Unsecured credit facility, $600 million, expiring June 2017 [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity replaced		600
Line of Credit Facility, Maximum Borrowing Capacity		600
PacifiCorp [Member] | Unsecured credit facility, $400 million, expiring June 2019 [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 400
Solar Star Funding, LLC [Member] | Letter of credit and reimbursement facility, Solar Star [Member] | Letter of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity replaced			$ 320
Line of Credit Facility, Maximum Borrowing Capacity			$ 301
Letters of Credit Outstanding, Amount	$ 284
Maximum [Member] | BHE [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt to capitalization ratio	0.70
Maximum [Member] | PacifiCorp [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt to capitalization ratio	0.65