Consolidated Condensed Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues:
Insurance premiums	$ 1,649	$ 1,615
Net investment income	726	661
Investment losses:
Other-than-temporary impairment losses	(15)	(20)
Portion of other-than-temporary impairment losses recognized in Other comprehensive income (loss)	(12)	(21)
Net impairment losses recognized in earnings	(27)	(41)
Other net investment gains	59	64
Total investment gains	32	23
Contract drilling revenues	755	789
Other	582	580
Total	3,744	3,668
Expenses:
Insurance claims and policyholders' benefits	1,381	1,364
Amortization of deferred acquisition costs	295	297
Contract drilling expenses	397	362
Other operating expenses	819	737
Interest	111	151
Total	3,003	2,911
Income before income tax	741	757
Income tax expense	(222)	(195)
Net income	519	562
Amounts attributable to noncontrolling interests	(152)	(183)
Net income attributable to Loews Corporation	$ 367	$ 379
Basic net income per share	$ 0.93	$ 0.92
Diluted net income per share	$ 0.92	$ 0.92
Dividends per share	$ 0.0625	$ 0.0625
Weighted-average shares outstanding:
Shares of common stock	396.77	412.90
Dilutive potential shares of common stock	0.67	0.93
Total weighted-average shares outstanding assuming dilution	397.44	413.83