Condensed Consolidated Statements of Cash Flows (USD $) In Millions	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities
Net income (loss)	$ 439	$ 432
Adjustments to reconcile net income to net cash provided (used) by operating activities:
(Income) loss from discontinued operations	1	21
(Gain) loss on disposal of property and equipment	8
Deferred income tax expense (benefit)	153	163
Trading portfolio activity	(8)	125
Net realized investment (gains) losses, net of participating policyholders’ interests	(1)	(125)
Equity method investees	80	(25)
Amortization of investments	(47)	(84)
Depreciation	59	60
Changes in:
Receivables, net	267	(709)
Accrued investment income	(42)	(51)
Deferred acquisition costs	(28)	12
Insurance reserves	(5)	(563)
Other assets	110	168
Other liabilities	(181)	(11)
Other, net	10	3
Total adjustments	376	(1,016)
Net cash flows provided (used) by operating activities-continuing operations	815	(584)
Net cash flows provided (used) by operating activities-discontinued operations	(2)	(89)
Net cash flows provided (used) by operating activities-total	813	(673)
Cash Flows from Investing Activities
Purchases of fixed maturity securities	(8,854)	(12,981)
Proceeds from Fixed Maturity Securities:
Sales	5,900	9,263
Maturities, calls and redemptions	2,434	2,891
Purchases of equity securities	(51)	(92)
Proceeds from sales of equity securities	171	215
Origination of mortgage loans	(118)	(70)
Change in short term investments	499	1,752
Change in other investments	(137)	(227)
Purchases of property and equipment	(67)	(38)
Dispositions		65
Other, net	4	7
Net cash flows provided (used) by investing activities-continuing operations	(219)	785
Net cash flows provided (used) by investing activities-discontinued operations	2	75
Net cash flows provided (used) by investing activities-total	(217)	860
Cash Flows from Financing Activities
Acquisition of CNA Surety noncontrolling interest	(475)
Dividends paid to common stockholders	(81)
Dividends paid to Loews Corporation for 2008 Senior Preferred		(68)
Payment to redeem 2008 Senior Preferred		(500)
Proceeds from the issuance of debt	396	495
Repayment of debt	(420)	(150)
Stock options exercised	2	4
Other, net	(10)	(26)
Net cash flows provided (used) by financing activities-continuing operations	(588)	(245)
Net cash flows provided (used) by financing activities-discontinued operations
Net cash flows provided (used) by financing activities-total	(588)	(245)
Effect of foreign exchange rate changes on cash-continuing operations	(1)
Net change in cash	7	(58)
Net cash transactions from continuing operations to discontinued operations		(14)
Net cash transactions to discontinued operations from continuing operations		14
Cash, beginning of year	77	140
Cash, end of period	84	82
Cash-continuing operations	84	82
Cash-discontinued operations
Cash	$ 84	$ 82

Cash balance attributable to continuing operations

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Cash balance attributable to discontinued operations

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Change in other investments

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The net amount paid (received) by the reporting entity through acquisition (sale/maturities) of short-term investments with an original maturity that is less than 12 months which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle.

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The cash inflow from the sale of Property, Plant and Equipment and other asset dispositions

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Net cash transactions from continuing operations to discontinued operations

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Net cash transactions to discontinued operations from continuing operations

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The net realized gain or loss, net of participating policyholders' interests, recognized during the period on investments classified as available for sale.

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The amount of cash paid for the origination of mortgages.

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Proceeds from fixed maturity securities [Abstract]

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The increase (decrease) during the reporting period in the total amount of insurance receivables and reinsurance receivables.

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The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

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The aggregate amount of adjustments to net income or loss necessary to remove the effects of all items whose cash effects are investing or financing cash flows. The aggregate amount also includes all noncash expenses and income items which reduce or increase net income and are thus added back or deducted when calculating cash provided by or used in operating activities.

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The sum of adjustments which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method.

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Unrestricted cash available for day-to-day operating needs, for an entity that has cash equivalents, but does not aggregate cash equivalents with cash on the balance sheet.

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The increase (decrease) during the reporting period in cash and cash equivalents. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.

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This element represents cash provided by or used in the operating activities of the entity's discontinued operations during the period. This element is only used by those entities that separately report cash flows attributable to discontinued operations. If using this element, it is an indication that the cash flows of the entity which are detailed in reconciling to cash provided by or used in operating activities reflect only cash flows attributable to continuing operations.

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The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The effect of exchange rate changes on cash balances in continuing operations held in foreign currencies.

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The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss).

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This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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- Definition

The increase (decrease) during the reporting period in investment income that has been earned but not yet received in cash.

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The increase (decrease) during the reporting period in the balance sheet value of capitalized sales costs that are associated with acquiring a new insurance customers.

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The increase (decrease) during the reporting period in the aggregate value of financial instruments used in operating activities, including trading securities, risk management instruments, and other short-term trading instruments.

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The increase (decrease) in insurance liability balances during the period.

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The increase (decrease) during the reporting period in other assets used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets, other noncurrent assets, or a combination of other current and noncurrent assets.

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The increase (decrease) during the reporting period in other liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current liabilities, other noncurrent liabilities, or a combination of other current and noncurrent liabilities.

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The net cash inflow or outflow from financing activity for the period.

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The net cash from (used in) the entity's financing activities specifically EXCLUDING the cash flows derived by the entity from its discontinued operations, if any. This element is only to be used when the entity reports its cash flows attributable to discontinued operations separately from the cash flow provided by or used in financing activities. Such reporting would necessitate the entity to use the Net Cash provided by or used in Discontinued Operations, Total element provided in the taxonomy.

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The net cash inflow or outflow from investing activity.

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The net cash from (used in) the entity's investing activities specifically EXCLUDING the cash flows derived by the entity from its discontinued operations, if any. This element is only to be used when the entity reports its cash flows attributable to discontinued operations separately from the cash flow provided by or used in investing activities. Such reporting would necessitate the entity to use the Net Cash provided by or used in Discontinued Operations, Total element provided in the taxonomy.

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