Indemnity Supplemental Information (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Indemnity's components of direct cash flows as included in the Consolidated Statements of Cash Flows
Service agreement fee received	$ 31	$ 31	$ 31
Net investment income received	484	450	471
Limited partnership distributions	131	176	164
Commissions and bonuses paid to agents	(749)	(681)	(617)
Income taxes paid	(190)	(284)	(227)
Net cash provided by operating activities	779	903	577
Net cash (used in) provided by investing activities	(596)	(759)	(85)
Net cash used in financing activities	(121)	(92)	(277)
Net increase in cash and cash equivalents	62	52	215
Cash and cash equivalents at beginning of year	452	400	185
Cash and cash equivalents at end of year	514	452	400
Indemnity
Indemnity's components of direct cash flows as included in the Consolidated Statements of Cash Flows
Management fee received	1,349	1,240	1,135
Service agreement fee received	31	31	31
Net investment income received	23	22	28
Limited partnership distributions	15	27	21
(Decrease) increase in reimbursements collected from affiliates	(7)	6	(4)
Commissions and bonuses paid to agents	(749)	(681)	(617)
Salaries and wages paid	(153)	(147)	(130)
Pension contribution and employee benefits paid	(49)	(41)	(38)
General operating expenses paid	(179)	(153)	(139)
Income taxes paid	(95)	(86)	(82)
Net cash provided by operating activities	186	218	205
Net cash (used in) provided by investing activities	(4)	(65)	95
Net cash used in financing activities	(139)	(116)	(299)
Net increase in cash and cash equivalents	43	37	1
Cash and cash equivalents at beginning of year	49	12	11
Cash and cash equivalents at end of year	$ 92	$ 49	$ 12