Consolidated Condensed Statements Of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 310	$ 316	$ 1,027	$ 1,282
Other comprehensive income (loss) Changes in:
Net unrealized gains (losses) on investments with other- than-temporary impairments	36	(14)	73	25
Net other unrealized gains on investments	191	228	528	551
Total unrealized gains on available-for-sale investments	227	214	601	576
Unrealized gains (losses) on cash flow hedges	(18)	8	(5)	(3)
Foreign currency	34	(54)	36	(23)
Pension liability			11	2
Other comprehensive income	243	168	643	552
Comprehensive income	553	484	1,670	1,834
Amounts attributable to noncontrolling interests	(160)	(159)	(493)	(547)
Total comprehensive income attributable to Loews Corporation	$ 393	$ 325	$ 1,177	$ 1,287

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