Property Casualty Loss and Loss Expenses (Tables)

9 Months Ended

Sep. 30, 2013

Premiums Written, Net [Abstract]

Consolidated Property Casualty Loss And Loss Expense Reserves

This table summarizes activity for our consolidated property casualty loss and loss expense reserves:

(In millions)	Three months ended September 30,						Nine months ended September 30,
	2013			2012			2013			2012
Gross loss and loss expense reserves,   beginning of period	$	4,219		$	4,337		$	4,169		$	4,280
Less reinsurance receivable	333			332			356			375
Net loss and loss expense reserves,   beginning of period	3,886			4,005			3,813			3,905
Net incurred loss and loss expenses related to:
Current accident year	631			611			1,840			1,991
Prior accident years	(38		)	(86		)	(140		)	(287		)
Total incurred	593			525			1,700			1,704
Net paid loss and loss expenses related to:
Current accident year	329			364			699			778
Prior accident years	233			229			897			894
Total paid	562			593			1,596			1,672
Net loss and loss expense reserves,   end of period	3,917			3,937			3,917			3,937
Plus reinsurance receivable	321			343			321			343
Gross loss and loss expense reserves,   end of period	$	4,238		$	4,280		$	4,238		$	4,280