Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues
Premiums Earned	$ 12,066	$ 11,838	$ 11,644
Investment Income	1,465	1,556	1,644
Other Revenues	14	8	9
Realized Investment Gains (Losses), Net
Total Other-Than-Temporary Impairment Losses on Investments	(11)	(40)	(22)
Other-Than-Temporary Impairment Losses on Investments Recognized in Other Comprehensive Income		(5)	(1)
Other Realized Investment Gains, Net	413	238	311
Total Realized Investment Gains, Net	402	193	288
TOTAL REVENUES	13,947	13,595	13,585
Losses and Expenses
Losses and Loss Expenses	6,520	7,507	7,407
Amortization of Deferred Policy Acquisition Costs	2,454	2,411	2,330
Other Insurance Operating Costs and Expenses	1,411	1,362	1,312
Investment Expenses	49	38	39
Other Expenses	22	11	11
Corporate Expenses	254	270	287
TOTAL LOSSES AND EXPENSES	10,710	11,599	11,386
INCOME BEFORE FEDERAL AND FOREIGN INCOME TAX	3,237	1,996	2,199
Federal and Foreign Income Tax	892	451	521
NET INCOME	$ 2,345	$ 1,545	$ 1,678
Net Income Per Share
Basic	$ 9.08	$ 5.73	$ 5.80
Diluted	$ 9.04	$ 5.69	$ 5.76