Investment And Other Income (Tables)

3 Months Ended

Mar. 31, 2021

Investment And Other Income [Abstract]

Components Of Investment And Other Income

	For the three months ended
	March 31,
($ in millions)	2021		2020
Interest and dividend income	$	-	$	2
Pension and OPEB benefit		1		1
All other, net		1		2
Total investment and other income, net	$	2	$	5