Insurance Claim Reserves (tables)

12 Months Ended

Dec. 31, 2012

Insurance Claim Reserves disclosure

Claims and claim adjustment expense reserves [Table Text Block]

(at December 31, in millions)	2012		2011
Property-casualty	$	50,888	$	51,353
Accident and health		34		39
Total	$	50,922	$	51,392

Reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses [Table Text Block]

(at and for the year ended December 31, in millions)	2012			2011			2010
Claims and claim adjustment expense reserves at beginning of year	$	51,353		$	51,537		$	53,529
Less reinsurance recoverables on unpaid losses		10,434			11,282			12,588
Net reserves at beginning of year		40,919			40,255			40,941
Estimated claims and claim adjustment expenses for claims arising in the current year		15,559			16,937			14,452
Estimated decrease in claims and claim adjustment expenses for claims arising in prior years		(1,074	)		(842	)		(1,417	)
Total increases		14,485			16,095			13,035
Claims and claim adjustment expense payments for claims arising in:
Current year		6,507			7,751			5,949
Prior years		8,326			7,653			7,748
Total payments		14,833			15,404			13,697
Unrealized foreign exchange (gain) loss		63			(27	)		(24	)
Net reserves at end of year		40,634			40,919			40,255
Plus reinsurance recoverables on unpaid losses		10,254			10,434			11,282
Claims and claim adjustment expense reserves at end of year	$	50,888		$	51,353		$	51,537