Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Premiums Earned	$ 3,029	$ 3,004
Investment Income	358	372
Other Revenues	3	3
Realized Investment Gains (Losses), Net
Total Other-Than-Temporary Impairment Losses on Investments		(2)
Other Realized Investment Gains, Net	116	140
Total Realized Investment Gains, Net	116	138
Total Revenues	3,506	3,517
Losses and Expenses
Losses and Loss Expenses	1,845	1,568
Amortization of Deferred Policy Acquisition Costs	622	587
Other Insurance Operating Costs and Expenses	356	359
Investment Expenses	11	13
Other Expenses	5	6
Corporate Expenses	64	68
Total Losses and Expenses	2,903	2,601
Income Before Federal and Foreign Income Tax	603	916
Federal and Foreign Income Tax	154	260
Net Income	$ 449	$ 656
Net Income Per Share
Basic	$ 1.81	$ 2.49
Diluted	$ 1.80	$ 2.48
Dividends Declared Per Share	$ 0.50	$ 0.44