Indemnity Supplemental Information (Details 3) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Condensed financial statements
Service agreement fee received	$ 23	$ 23
Net investment income received	337	346
Limited partnership distributions	125	94
Commissions and bonuses paid to agents	(521)	(470)
Income taxes paid	(208)	(246)
Net cash provided by (used in) operating activities	689	365
Net cash provided by (used in) investing activities	(498)	(34)
Net cash provided by (used in) financing activities	(56)	(112)
Net increase (decrease) in cash and cash equivalents	135	219
Cash and cash equivalents at beginning of period	400	185
Cash and cash equivalents at end of period	535	404
Indemnity
Condensed financial statements
Management fee received	933	851
Service agreement fee received	23	23
Net investment income received	16	19
Limited partnership distributions	18	11
Decrease in reimbursements collected from affiliates	(8)	(2)
Commissions and bonuses paid to agents	(521)	(470)
Salaries and wages paid	(110)	(99)
Pension contribution and employee benefits paid	(33)	(36)
General operating expenses paid	(124)	(99)
Income taxes paid	(62)	(54)
Net cash provided by (used in) operating activities	132	144
Net cash provided by (used in) investing activities	(33)	(8)
Net cash provided by (used in) financing activities	(78)	(135)
Net increase (decrease) in cash and cash equivalents	21	1
Cash and cash equivalents at beginning of period	12	11
Cash and cash equivalents at end of period	$ 33	$ 12