Insurance Premiums and Service Revenue (Tables)

12 Months Ended

Dec. 31, 2024

Insurance Premiums and Service Revenue [Abstract]

Schedule of Insurance Premiums and Service Revenue

The following table is a summary of insurance premiums and service revenue written and earned.

	2024				2023				2022
Year ended December 31, ($ in millions)	Written		Earned		Written		Earned		Written		Earned
Insurance premiums
Direct	$	622	$	564	$	476	$	446	$	388	$	379
Assumed	122		113		93		68		42		29
Gross insurance premiums	744		677		569		514		430		408
Ceded	(275)		(258)		(265)		(238)		(216)		(211)
Net insurance premiums	469		419		304		276		214		197
Service revenue	1,003		994		971		995		889		954
Insurance premiums and service revenue written and earned	$	1,472	$	1,413	$	1,275	$	1,271	$	1,103	$	1,151