Other Income (Expense), Net (Tables)

6 Months Ended

Jun. 30, 2019

Income Statement [Abstract]

Components of Other Income (Expense), Net

Components of other income (expense), net are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(millions)	2019			2018			2019			2018
Revenues from contracts with customers	$	2		$	2		$	3		$	3
Other income		2			4			6			130
Other expense		(15	)		(5	)		(25	)		(12	)
Allowance for equity funds used during construction		2			1			2			4
Other income (expense), net	$	(9	)	$	2		$	(14	)	$	125