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Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on Recurring Basis

The following tables present our financial assets and financial liabilities that are measured at fair value on a recurring basis as of December 31, 2018 and December 31, 2017. We did not have any financial liabilities measured at fair value on a recurring basis as of December 31, 2017.

	December 31, 2018
	Total				Level 1				Level 2				Level 3
	(in millions)
Assets at Fair Value
Financial investments, at fair value	$	268			$	133			$	135			$	—
Default fund and margin deposit investments	1,649				327				1,322				—
Total Assets at Fair Value	$	1,917			$	460			$	1,457			$	—
Liabilities at Fair Value
Other financial instruments	$	112			$	—			$	112			$	—
Total Liabilities at Fair Value	$	112			$	—			$	112			$	—

	December 31, 2017
	Total				Level 1				Level 2				Level 3
	(in millions)
Assets at Fair Value
Financial investments, at fair value	$	235			$	135			$	100			$	—
Default fund and margin deposit investments	2,129				371				1,758				—
Total Assets at Fair Value	$	2,364			$	506			$	1,858			$	—

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- References

No definition available.

+ Details

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