SCHEDULE III SUPPLEMENTARY INSURANCE INFORMATION (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
SUPPLEMENTARY INSURANCE INFORMATION
Deferred policy acquisition costs	$ 566	$ 504	$ 487
Reserves for losses, loss expenses, life policy deposit contracts	5,505	5,306	5,170
Unearned premiums	2,598	2,365	2,178
Premiums earned	4,898	4,493	4,214
Net investment income	422	438	433
Benefits, claims, losses, and settlement expenses	3,467	3,480	3,444
Amortization of deferred policy acquisition costs	778	715	680
Other operating expenses	459	418	342
Net premiums written (excluding life)	5,045	4,603	4,255
Property and casualty insurance operations
SUPPLEMENTARY INSURANCE INFORMATION
Deferred policy acquisition costs	402	364	343
Reserves for losses, loss expenses, life policy deposit contracts	3,747	3,598	3,499
Unearned premiums	2,598	2,365	2,178
Premiums earned	4,820	4,422	4,149
Net investment income	313	327	324
Benefits, claims, losses, and settlement expenses	3,360	3,379	3,344
Amortization of deferred policy acquisition costs	763	705	668
Other operating expenses	437	397	327
Net premiums written (excluding life)	5,045	4,603	4,255
Life insurance operations
SUPPLEMENTARY INSURANCE INFORMATION
Deferred policy acquisition costs	164	140	144
Reserves for losses, loss expenses, life policy deposit contracts	1,758	1,708	1,671
Premiums earned	78	71	65
Net investment income	94	95	93
Benefits, claims, losses, and settlement expenses	107	101	100
Amortization of deferred policy acquisition costs	15	10	12
Other operating expenses	22	21	15
Management operations
SUPPLEMENTARY INSURANCE INFORMATION
Net investment income	$ 15	$ 16	$ 16