Reinsurance and indemnification (Tables)

6 Months Ended

Jun. 30, 2020

Reinsurance Disclosures [Abstract]

Schedule of reductions to premiums and contract charges due to reinsurance premium ceded amounts

Effects of reinsurance ceded and indemnification programs on property and casualty premiums earned and life premiums and contract charges
($ in millions)	Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019
Property and casualty insurance premiums earned	$	(279	)	$	(287	)	$	(568	)	$	(547	)
Life premiums and contract charges	(67		)	(69		)	(111		)	(132		)

Schedule of reductions to costs and expenses due to reinsurance ceded amounts

Effects of reinsurance ceded and indemnification programs on property and casualty insurance claims and claims expense, life contract benefits and interest credited to contractholder funds
($ in millions)	Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019
Property and casualty insurance claims and claims expense	$	(210	)	$	(158	)	$	(341	)	$	(249	)
Life contract benefits	(45		)	5			(136		)	(18		)
Interest credited to contractholder funds	(7		)	(5		)	(12		)	(8		)

Schedule of reinsurance recoverable for paid and unpaid claims

Reinsurance and indemnification recoverables, net
($ in millions)	June 30, 2020		December 31, 2019
Property and casualty
Paid and due from reinsurers and indemnitors	$	86	$	112
Unpaid losses estimated (including IBNR)	7,014		6,912
Total property and casualty	$	7,100	$	7,024
Annuities	1,367		1,305
Life insurance	737		794
Other	86		88
Total	$	9,290	$	9,211