Other Income (Expense), Net (Tables)

3 Months Ended

Mar. 31, 2021

Income Statement [Abstract]

Components of Other Income (Expense), Net

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

	Three Months Ended March 31,
(millions)	2021		2020
Revenues from contracts with customers	$	—	$	1
Other income		3		3
Other expense		2		(2	)
Allowance for equity funds used during construction		1		1
Other income, net	$	6	$	3