Investments and Restricted Cash and Investments (Tables)

9 Months Ended

Sep. 30, 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
	September 30,		December 31,
	2018		2017
Investments:
BYD Company Limited common stock	$	1,616	$	1,961
Rabbi trusts	398		441
Other	186		124
Total investments	2,200		2,526
Equity method investments:
BHE Renewables tax equity investments	1,221		1,025
Electric Transmission Texas, LLC	530		524
Bridger Coal Company	116		137
Other	163		148
Total equity method investments	2,030		1,834
Restricted cash and cash equivalents and investments:
Quad Cities Station nuclear decommissioning trust funds	543		515
Restricted cash and cash equivalents	385		348
Total restricted cash and cash equivalents and investments	928		863
Total investments and restricted cash and cash equivalents and investments	$	5,158	$	5,223
Reflected as:
Current assets	$	404	$	351
Noncurrent assets	4,754		4,872
Total investments and restricted cash and cash equivalents and investments	$	5,158	$	5,223

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

The portion of unrealized losses related to investments still held as of September 30,2018 is calculated as follows (in millions):

	Three-Month Period		Nine-Month Period
	Ended September 30,		Ended September 30,
	2018		2018
Gains (losses) on marketable securities recognized during the period	$	260	$	(336	)
Less: Net gains recognized during the period on marketable securities sold during the period	—		1
Unrealized gains (losses) recognized during the period on marketable securities still held at the reporting date	$	260	$	(337	)