CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Revenues
Premiums earned	$ 1,319	$ 1,215	$ 2,607	$ 2,390
Net investment income	111	104	220	207
Net realized investment gains	133	61	189	310
Net impairment losses recognized in earnings	0	(1)	0	(1)
Equity in earnings of limited partnerships	27	39	77	75
Other income	8	8	16	16
Total revenues	1,598	1,426	3,109	2,997
Benefits and expenses
Insurance losses and loss expenses	1,126	861	2,160	1,703
Policy acquisition and underwriting expenses	325	302	646	595
Total benefits and expenses	1,451	1,163	2,806	2,298
Income (loss) from operations before income taxes and noncontrolling interest	147	263	303	699
Provision for income taxes	44	86	91	232
Net income (loss)	103	177	212	467	1,048
Less: Net income attributable to noncontrolling interest in consolidated entity – Exchange	54	133	117	386
Net income attributable to Indemnity	49	44	95	81
Indemnity
Revenues
Net investment income	4	3	8	7
Net realized investment gains	0	0	1	0
Equity in earnings of limited partnerships	3	5	9	8
Benefits and expenses
Income (loss) from operations before income taxes and noncontrolling interest	75	67	144	123
Provision for income taxes	26	23	49	42
Net income (loss)			95		163
Net income attributable to Indemnity	$ 49	$ 44	$ 95	$ 81
Class A | Indemnity
Net income attributable to Indemnity per share
Common stock - basic (in dollars per share)	$ 1.05	$ 0.95	$ 2.04	$ 1.73
Common stock - diluted (in dollars per share)	$ 0.94	$ 0.84	$ 1.82	$ 1.54
Weighted average shares outstanding attributable to Indemnity - Basic
Common stock - basic (in shares)	46,214,153	46,693,333	46,307,659	46,733,925
Weighted average shares outstanding attributable to Indemnity - Diluted
Common stock - diluted (in shares)	52,411,414	52,886,259	52,504,920	52,926,851
Dividends declared per share
Common stock (in dollars per share)	$ 0.6350	$ 0.5925	$ 1.2700	$ 1.1850	$ 2.4125
Class B | Indemnity
Net income attributable to Indemnity per share
Common stock - basic (in dollars per share)	$ 158.00	$ 142.00	$ 307.00	$ 259.00
Common stock - diluted (in dollars per share)	$ 158.00	$ 142.00	$ 307.00	$ 259.00
Weighted average shares outstanding attributable to Indemnity - Basic
Common stock - basic (in shares)	2,542	2,542	2,542	2,542
Weighted average shares outstanding attributable to Indemnity - Diluted
Common stock - diluted (in shares)	2,542	2,542	2,542	2,542
Dividends declared per share
Common stock (in dollars per share)	$ 95.2500	$ 88.8750	$ 190.5000	$ 177.7500	$ 361.8750