Consolidated Balance Sheets (USD $) In Millions	6 Months Ended	12 Months Ended
Jun. 30, 2011	Dec. 31, 2010
Investments:
Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $330,903 and $317,617, respectively; includes $3,357 and $3,330, respectively, relating to variable interest entities)	$ 341,744	$ 324,797
Equity securities available-for-sale, at estimated fair value (cost: $3,128 and $3,621, respectively)	3,238	3,602
Trading and other securities, at estimated fair value (includes $560 and $463, respectively, of actively traded securities; and $359 and $387, respectively, relating to variable interest entities)	19,700	18,589
Mortgage loans:
Held-for-investment, principally at amortized cost (net of valuation allowances of $566 and $664, respectively; includes $6,697 and $6,840, respectively, at estimated fair value, relating to variable interest entities)	60,819	58,976
Held-for-sale, principally at estimated fair value	2,805	3,321
Mortgage loans, net	63,624	62,297
Policy loans	11,858	11,761
Real estate and real estate joint ventures (includes $15 and $10, respectively, relating to variable interest entities)	8,234	8,030
Other limited partnership interests (includes $331 and $298, respectively, relating to variable interest entities)	6,453	6,416
Short-term investments, principally at estimated fair value	12,419	9,384
Other invested assets, principally at estimated fair value (includes $98 and $104, respectively, relating to variable interest entities)	14,900	15,430
Total investments	482,170	460,306
Cash and cash equivalents, principally at estimated fair value (includes $65 and $69, respectively, relating to variable interest entities)	9,628	12,957
Accrued investment income (includes $34 and $34, respectively, relating to variable interest entities)	4,341	4,328
Premiums, reinsurance and other receivables (includes $2 and $2, respectively, relating to variable interest entities)	21,070	19,799
Deferred policy acquisition costs and value of business acquired	28,241	27,092
Goodwill	12,036	11,781
Other assets (includes $7 and $6, respectively, relating to variable interest entities)	8,246	8,174
Assets of subsidiaries held-for-sale	3,369	3,331
Separate account assets	202,382	183,138
Total assets	771,483	730,906
Liabilities
Future policy benefits	176,353	170,912
Policyholder account balances	217,597	210,757
Other policy-related balances	15,456	15,750
Policyholder dividends payable	853	830
Policyholder dividend obligation	1,281	876
Payables for collateral under securities loaned and other transactions	30,079	27,272
Bank deposits	10,022	10,316
Short-term debt	102	306
Long-term debt (includes $6,569 and $6,902, respectively, at estimated fair value, relating to variable interest entities)	28,269	27,586
Collateral financing arrangements	5,297	5,297
Junior subordinated debt securities	3,192	3,191
Current income tax payable	133	297
Deferred income tax liability	3,764	1,856
Other liabilities (includes $82 and $93, respectively, relating to variable interest entities)	19,707	20,366
Liabilities of subsidiaries held-for-sale	3,163	3,043
Separate account liabilities	202,382	183,138
Total liabilities	717,650	681,793
Contingencies, Commitments and Guarantees (Note 8)
Redeemable noncontrolling interests in partially owned consolidated subsidiaries	124	117
MetLife, Inc.'s stockholders' equity:
Common stock, par value $0.01 per share; 3,000,000,000 shares authorized; 1,060,584,995 and 989,031,704 shares issued at June 30, 2011 and December 31, 2010, respectively; 1,057,391,108 and 985,837,817 shares outstanding at June 30, 2011 and December 31, 2010, respectively	11	10
Additional paid-in capital	26,714	26,423
Retained earnings	23,399	21,363
Treasury stock, at cost; 3,193,887 shares at June 30, 2011 and December 31, 2010	(172)	(172)
Accumulated other comprehensive income (loss)	3,356	1,000
Total MetLife, Inc.'s stockholders' equity	53,309	48,625
Noncontrolling interests	400	371
Total equity	53,709	48,996
Total liabilities and equity	771,483	730,906
Noncumulative Preferred Stock
MetLife, Inc.'s stockholders' equity:
Preferred Stock	1	1
Total equity	1	1
Convertible Preferred Stock
MetLife, Inc.'s stockholders' equity:
Preferred Stock	0	0
Total equity	$ 0	$ 0

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Gross amount of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral.

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-Publisher AICPA
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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest).

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Total carrying amount of mortgage loans as of the balance sheet date.

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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Carrying amount as of the balance sheet date of assets not otherwise specified in the taxonomy. Also serves as the sum of assets not individually reported in the financial statements, or not separately disclosed in notes.

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Other investments not otherwise specified in the taxonomy.

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Carrying amount as of the balance sheet date of liabilities not otherwise specified in the taxonomy. Also serves as the sum of liabilities not individually reported in the financial statements, or not separately disclosed in notes.

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The liability as of the balance sheet date to the policyholders for deposits held under the terms of insurance contracts.

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-Publisher FASB
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Carrying value as of the balance sheet date of the liability for dividends that are payable to the policyholders based upon the terms of the underlying insurance contracts.

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-Number 95-1
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Dollar value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) whether issued at par value, no par or stated value. This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.

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-Paragraph 2, 3, 4, 5, 6, 7, 8

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-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29
-Article 5

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Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of all premiums and other types of receivables due from other persons or entities.

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-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 5
-Article 7

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The net book value of real estate property held for investment purposes.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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-Paragraph 10

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-Article 5

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-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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Carrying value as of the balance sheet date , including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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-Section 02
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-Article 5

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-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

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The fair value of the assets held by the Entity for the benefit of separate account policyholders.

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-Number 03-1
-Paragraph 10-18

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 113
-Paragraph 53, 54

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The equivalent summary total of separate account assets representing contract holder funds that are carried at fair value.

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-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-1
-Section Summary

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-Name Statement of Position (SOP)
-Number 03-1
-Paragraph 19-23, 38

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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-Name Regulation S-X (SX)
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-Section 02
-Paragraph 19
-Subparagraph a
-Article 5

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-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Subparagraph a(1)
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Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

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-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 1
-Subparagraph g
-Article 7

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Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A3
-Appendix A

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-Section E

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-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

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Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.

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-Name Accounting Research Bulletin (ARB)
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-Paragraph 25

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-Paragraph 26

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-Number 51
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-Appendix A

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The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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-Section 02
-Paragraph 28
-Subparagraph b
-Article 5

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-Name Emerging Issues Task Force (EITF)
-Number 00-19
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Value of common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. Treasury stock is issued but is not outstanding. This stock has no voting rights and receives no dividends. Note that treasury stock may be recorded at its total cost or separately as par (or stated) value and additional paid in capital. Note: number of treasury shares concept is in another section within stockholders' equity.

+ References

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-Name FASB Technical Bulletin (FTB)
-Number 85-6
-Paragraph 3

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