Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues
Premiums Earned	$ 3,105	$ 3,029
Investment Income	339	358
Other Revenues	2	3
Realized Investment Gains (Losses), Net
Total Other-Than-Temporary Impairment Losses on Investments	(23)
Other Realized Investment Gains, Net	34	116
Total Realized Investment Gains, Net	11	116
Total Revenues	3,457	3,506
Losses and Expenses
Losses and Loss Expenses	1,920	1,845
Amortization of Deferred Policy Acquisition Costs	626	622
Other Insurance Operating Costs and Expenses	347	356
Investment Expenses	12	11
Other Expenses	4	5
Corporate Expenses	66	64
Total Losses and Expenses	2,975	2,903
Income Before Federal and Foreign Income Tax	482	603
Federal and Foreign Income Tax	107	154
Net Income	$ 375	$ 449
Net Income Per Share
Basic	$ 1.61	$ 1.81
Diluted	$ 1.60	$ 1.80
Dividends Declared Per Share	$ 0.57	$ 0.50