Other Income (Expense), Net (Tables)

6 Months Ended

Jun. 30, 2021

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)	2021			2020			2021			2020
Revenues from contracts with customers	$	—		$	—		$	—		$	1
Other income		4			4			7			7
Other expense		(18	)		(3	)		(16	)		(5	)
Allowance for equity funds used during construction		2			1			3			2
Other income (expense), net	$	(12	)	$	2		$	(6	)	$	5