Consolidated Condensed Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]
Net income	$ 215	$ 412	$ 399	$ 810
Other comprehensive income (loss), after tax Changes in:
Net unrealized gains (losses) on investments with other-than-temporary impairments	2	(8)	14	6
Net other unrealized gains (losses) on investments	270	(585)	507	(647)
Total unrealized gains (losses) on available-for-sale investments	272	(593)	521	(641)
Discontinued operations	10	11	15	(5)
Unrealized gains (losses) on cash flow hedges		(1)	3	(6)
Pension liability	(53)	5	(54)	9
Foreign currency	42	(13)	36	(74)
Other comprehensive income (loss)	271	(591)	521	(717)
Comprehensive income (loss)	486	(179)	920	93
Amounts attributable to noncontrolling interests	(126)	(83)	(277)	(225)
Total comprehensive income (loss) attributable to Loews Corporation	$ 360	$ (262)	$ 643	$ (132)

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Net Unrealized Gains Losses On Discontinued Operations

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Unrealized Gains Losses On Available For Sale Investments

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of (increase) decrease in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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