Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Fixed maturities securities at amortized cost	$ 36,913	$ 39,311
Equity securities at cost	163	179
Allowance for uncollectible reinsurance receivables	65	71
Allowance for uncollectible insurance receivables	82	84
Accumulated depreciation on property and equipment	367	365
Other liabilities payable to Loews Corporation	$ 3	$ 178
Common stock, par value	$ 2.50	$ 2.50
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	273,040,243	273,040,243
Common stock, shares outstanding	269,923,905	269,717,583
Treasury stock, shares	3,116,338	3,322,660