Investments and Restricted Cash and Investments (Tables)

3 Months Ended

Mar. 31, 2018

Investments and Restricted Cash and Investments [Abstract]

Investments and Restricted Cash and Investments

Investments and restricted cash and cash equivalents and investments consists of the following (in millions):

	As of
	March 31,		December 31,
	2018		2017
Investments:
BYD Company Limited common stock	$	1,754	$	1,961
Rabbi trusts	387		441
Other	183		124
Total investments	2,324		2,526
Equity method investments:
BHE Renewables tax equity investments	1,177		1,025
Electric Transmission Texas, LLC	536		524
Bridger Coal Company	129		137
Other	143		148
Total equity method investments	1,985		1,834
Restricted cash and cash equivalents and investments:
Quad Cities Station nuclear decommissioning trust funds	512		515
Restricted cash and cash equivalents	232		348
Total restricted cash and cash equivalents and investments	744		863
Total investments and restricted cash and cash equivalents and investments	$	5,053	$	5,223
Reflected as:
Current assets	$	257	$	351
Noncurrent assets	4,796		4,872
Total investments and restricted cash and cash equivalents and investments	$	5,053	$	5,223

Unrealized Gain (Loss) on Investments [Table Text Block]

The portion of unrealized losses for the three-month period endedMarch 31,2018 related to investments still held as of March 31,2018 is calculated as follows (in millions):

Realized and unrealized losses on marketable securities recognized during the period	$	(209	)
Less: Net gains recognized during the period on investments sold during the period	2
Unrealized losses recognized during the period on investments still held at the reporting date	$	(211	)