Other Income and Expenses (Tables)

12 Months Ended

Dec. 31, 2018

Other Income and Expenses [Abstract]

Other Income and Expenses [Table Text Block]

The following table presents certain gains or losses reflected in Other (income) expense – net within Costs and expenses in the Consolidated Statement of Operations:

	Years Ended December 31,
	2018			2017			2016
	(Millions)
Atlantic-Gulf
Amortization of regulatory assets associated with asset retirement obligations	$	33		$	33		$	33
Accrual of regulatory liability related to overcollection of certain employee expenses	22			22			25
Project development costs related to Constitution (Note 4)	4			16			28
Gains on asset retirements	(12		)	—			(11		)
West
Gains on contract settlements and terminations	—			(15		)	—
Regulatory charge per approved rates related to Tax Reform	24			—			—
Charge for regulatory liability associated with the decrease in Northwest Pipeline’s estimated deferred state income tax rates following WPZ Merger	12			—			—
Other
Gain on sale of Refinery Grade Propylene Splitter	—			(12		)	—
Loss on sale of Canadian operations (Note 3)	—			5			66
Net foreign currency exchange (gains) losses (1)	—			—			10
Gain on sale of unused pipe	—			—			(10		)
Benefit of regulatory asset associated with increase in Transco’s estimated deferred state income tax rate following WPZ Merger	(37		)	—			—

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(1) Primarily relates to gains and losses incurred on foreign currency transactions and the remeasurement of U.S. dollar-denominated current assets and liabilities within our former Canadian operations (see Note 3 – Divestitures).

Defined Benefit Plan Settlement Charge Expense 1 [Table Text Block]

Other income (expense) – net below Operating income (loss) includes settlement charge expense related to the program to pay out certain deferred vested pension benefits as follows (see Note 10 – Employee Benefit Plans):

	Years Ended December 31,
	2018		2017
	(Millions)
Atlantic-Gulf	$	7	$	15
Northeast	4		7
West	6		13
Other	5		35