Goodwill And Other Intangibles (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill And Other Intangibles [Abstract]

Components Of Other Intangibles

	September 30, 2020						December 31, 2019
	Gross Carrying		Accumulated		Net Carrying		Gross Carrying		Accumulated		Net Carrying
($ in millions)	Amount		Amortization		Amount		Amount		Amortization		Amount
Other Intangibles:
Customer base	$	4,332	$	(3,704)	$	628	$	4,332	$	(3,452)	$	880
Trade name		122		-		122		122		-		122
Royalty agreement		72		(65)		7		72		(54)		18
Total other intangibles	$	4,526	$	(3,769)	$	757	$	4,526	$	(3,506)	$	1,020

Amortization Expense

	For the three months ended				For the nine months ended
	September 30,				September 30,
($ in millions)	2020		2019		2020		2019
Amortization expense	$	81	$	101	$	263	$	344