Investment And Other Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2019

Investment And Other Income (Loss) [Abstract]

Components Of Investment And Other Income

	For the three months ended				For the nine months ended
	September 30,				September 30,
($ in millions)	2019		2018		2019		2018
Interest and dividend income	$	2	$	2	$	6	$	5
Pension and OPEB benefit (costs)		(12)		2		(34)		12
All other, net		-		(1)		-		(1)
Total investment and other income (loss), net	$	(10)	$	3	$	(28)	$	16