Other Intangibles (Tables)

3 Months Ended

Mar. 31, 2016

Other Intangibles [Abstract]

Components Of Other Intangibles

	March 31, 2016						December 31, 2015
	Gross Carrying		Accumulated		Net Carrying		Gross Carrying		Accumulated		Net Carrying
($ in millions)	Amount		Amortization		Amount		Amount		Amortization		Amount
Other Intangibles:
Customer base	$	2,998	$	(2,053)	$	945	$	2,998	$	(1,977)	$	1,021
Trade name		122		-		122		122		-		122
Total other intangibles	$	3,120	$	(2,053)	$	1,067	$	3,120	$	(1,977)	$	1,143