Schedule I Condensed Statements of Comprehensive Income Schedule I Condensed Statements of Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Net income	$ 2,122us-gaap_ProfitLoss	$ 1,676us-gaap_ProfitLoss	$ 1,495us-gaap_ProfitLoss
Other comprehensive (loss) income, net of tax	(397)	366	178
Comprehensive income	1,725	2,042	1,673
Comprehensive income attributable to noncontrolling interests	27	40	23
Comprehensive income attributable to BHE shareholders	1,698us-gaap_ComprehensiveIncomeNetOfTax	2,002us-gaap_ComprehensiveIncomeNetOfTax	1,650us-gaap_ComprehensiveIncomeNetOfTax
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	2,097	1,637	1,473
Other comprehensive (loss) income, net of tax	(397)	366	178
Comprehensive income	1,700	2,003	1,651
Comprehensive income attributable to noncontrolling interests	2	1	1
Comprehensive income attributable to BHE shareholders	$ 1,698	$ 2,002	$ 1,650

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Glossary Other Comprehensive Income

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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