Intangibles

3 Months Ended

Mar. 31, 2023

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(6) Intangibles:

We consider whether the carrying values of finite-lived intangible assets and property plant and equipment may not be recoverable or whether the carrying value of certain indefinite-lived intangible assets were impaired. No impairment was present for either intangibles or property plant and equipment as of March 31, 2023 and 2022.

The balances of these assets as of March 31, 2023 and December 31, 2022 was as follows:



	March 31, 2023						December 31, 2022
	Gross Carrying		Accumulated		Net Carrying		Gross Carrying		Accumulated		Net Carrying
($ in millions)	Amount		Amortization		Amount		Amount		Amortization		Amount

Intangibles:
Customer Relationships - Business	$	800	$	(139)	$	661	$	800	$	(121)	$	679
Customer Relationships - Wholesale		3,491		(418)		3,073		3,491		(364)		3,127
Trademarks & Tradenames		150		(58)		92		150		(50)		100
Total other intangibles	$	4,441	$	(615)	$	3,826	$	4,441	$	(535)	$	3,906

Amortization expense was as follows:


($ in millions)	For the three months ended March 31, 2023		For the three months ended March 31, 2022

Amortization expense	$	80	$	80

We amortize our intangible assets on a straight-line basis, over the assigned useful lives of 16 years for our wholesale customer relationships, 11 years for our business customer relationships, and five years for our trademarks and tradenames.