Revenue from Contract with Customer Revenue from Contract with Customer PAC (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 14,972
Revenues		19,787	$ 18,614	$ 17,422
Non-contracts with customer revenue [Member]
Revenue from External Customer [Line Items]
Revenues	[1]	601
PacifiCorp [Member]
Revenue from External Customer [Line Items]
Revenues		5,026	$ 5,237	$ 5,201	$ 5,232	$ 5,252
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Revenue from External Customer [Line Items]
Revenues		136
Regulated Operation [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		13,612
Regulated Operation [Member] | Regulated retail electric [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		9,419
Regulated Operation [Member] | Regulated wholesale [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		501
Regulated Operation [Member] | Regulated transmission and distribution [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,846
Regulated Operation [Member] | Other customer revenue [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		2
Regulated Operation [Member] | PacifiCorp [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		4,890
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail electric [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		4,656
Regulated Operation [Member] | PacifiCorp [Member] | Regulated wholesale [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		55
Regulated Operation [Member] | PacifiCorp [Member] | Regulated transmission and distribution [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		103
Regulated Operation [Member] | PacifiCorp [Member] | Other customer revenue [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		76
Regulated Operation [Member] | PacifiCorp [Member] | Residential [Member] | Regulated retail electric [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,737
Regulated Operation [Member] | PacifiCorp [Member] | Commercial [Member] | Regulated retail electric [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,513
Regulated Operation [Member] | PacifiCorp [Member] | Industrial [Member] | Regulated retail electric [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		1,172
Regulated Operation [Member] | PacifiCorp [Member] | Other [Member] | Regulated retail electric [Member]
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 234

[1] (2)Includes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group.