Reinsurance (Tables)

6 Months Ended

Jun. 30, 2016

Reinsurance Disclosures [Abstract]

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

Property-liability insurance premiums earned and life and annuity premiums and contract charges have been reduced by reinsurance ceded amounts shown in the following table.

($ in millions)	Three months ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Property-liability insurance premiums earned	$	248	$	251	$	497	$	511
Life and annuity premiums and contract charges	78		85		152		170

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

Property-liability insurance claims and claims expense, life and annuity contract benefits and interest credited to contractholder funds have been reduced by the reinsurance ceded amounts shown in the following table.

($ in millions)	Three months ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Property-liability insurance claims and claims expense	$	241	$	229	$	402	$	334
Life and annuity contract benefits	80		50		147		127
Interest credited to contractholder funds	6		7		11		13