Reinsurance (Tables)

9 Months Ended

Sep. 30, 2015

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 September 30,				Nine months ended September 30,
	2015		2014		2015		2014
Property-liability insurance premiums earned	$	246	$	258	$	757	$	778
Life and annuity premiums and contract charges	82		89		252		326

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 September 30,				Nine months ended September 30,
	2015		2014		2015		2014
Property-liability insurance claims and claims expense	$	107	$	155	$	441	$	373
Life and annuity contract benefits	23		81		150		286
Interest credited to contractholder funds	6		5		19		20