Indemnity Supplemental Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income attributable to Indemnity shareholder interest
Service agreement revenue	$ 8	$ 8	$ 24	$ 24
Total revenues	1,426	1,577	4,535	4,574
Net investment income	115	109	335	316
Net realized gains on investments	(85)	191	104	501
Net impairment losses recognized in earnings	(1)	(9)	(1)	(10)
Equity in earnings of limited partnerships	34	37	111	112
Income (loss) from operations before income taxes and noncontrolling interest	150	398	453	1,097
Provision for income taxes	42	131	133	363
Net income attributable to Indemnity	47	46	142	127
Indemnity
Income attributable to Indemnity shareholder interest
Net investment income	4	4	12	11
Net realized gains on investments	0	1	1	1
Net impairment losses recognized in earnings	0	0	0	0
Equity in earnings of limited partnerships	4	5	13	13
Income (loss) from operations before income taxes and noncontrolling interest	70	70	214	193
Provision for income taxes	23	24	72	66
Net income attributable to Indemnity	47	46	142	127
Indemnity | Management operations
Income attributable to Indemnity shareholder interest
Management fee revenue, net	362	333	1,047	965
Service agreement revenue	8	8	23	23
Total revenues	370	341	1,070	988
Cost of management operations	308	281	882	820
Income (loss) from operations before income taxes and noncontrolling interest	62	60	188	168
Indemnity | Investment operations
Income attributable to Indemnity shareholder interest
Net investment income	4	4	12	11
Net realized gains on investments	0	1	1	1
Net impairment losses recognized in earnings	0	0	0	0
Equity in earnings of limited partnerships	4	5	13	13
Income (loss) from operations before income taxes and noncontrolling interest	$ 8	$ 10	$ 26	$ 25