Investments and Restricted Cash and Investments (Tables)

12 Months Ended

Dec. 31, 2016

Investments, Including Equity Method And Restricted Cash And Investments [Line Items]

Investments and Restricted Cash and Investments [Table Text Block]

Investments and restricted cash and investments consists of the following as of December 31 (in millions):

	2016		2015
Investments:
BYD Company Limited common stock	$	1,185	$	1,238
Rabbi trusts	403		380
Other	106		130
Total investments	1,694		1,748
Equity method investments:
Electric Transmission Texas, LLC	672		585
Bridger Coal Company	165		190
BHE Renewables tax equity investments	741		168
Other	142		160
Total equity method investments	1,720		1,103
Restricted cash and investments:
Quad Cities Station nuclear decommissioning trust funds	460		429
Solar Star and Topaz Projects	64		95
Other	218		129
Total restricted cash and investments	742		653
Total investments and restricted cash and investments	$	4,156	$	3,504
Reflected as:
Current assets	$	211	$	137
Noncurrent assets	3,945		3,367
Total investments and restricted cash and investments	$	4,156	$	3,504

MidAmerican Energy Company [Member]

Investments, Including Equity Method And Restricted Cash And Investments [Line Items]

Investments and Restricted Cash and Investments [Table Text Block]

Investments and restricted cash and investments consists of the following amounts as of December 31 (in millions):

	2016		2015
Nuclear decommissioning trust	$	460	$	429
Rabbi trusts	184		175
Auction rate securities	—		26
Other	9		4
Total	$	653	$	634