Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Investments:
Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $338,030 and $330,354, respectively; includes $0 and $3,422, respectively, relating to variable interest entities)	$ 364,084	$ 350,889
Equity securities available-for-sale, at estimated fair value (cost: $2,983 and $2,744, respectively)	3,415	3,194
Fair value option securities, at estimated fair value (includes $7 and $8, respectively, relating to variable interest entities)	14,762	13,923
Mortgage loans (net of valuation allowances of $356 and $344, respectively; includes $123 and $136, respectively, at estimated fair value, relating to variable interest entities; includes $615 and $566, respectively, under the fair value option)	77,572	74,545
Policy loans	11,072	11,028
Real estate and real estate joint ventures (includes $44 and $59, respectively, of real estate held-for-sale)	9,484	9,041
Other limited partnership interests (includes $13 and $14, respectively, relating to variable interest entities)	6,874	6,778
Short-term Investments	7,177	7,810
Other invested assets, principally at estimated fair value (includes $31 and $31, respectively, relating to variable interest entities)	19,596	23,185
Total investments	514,036	500,393
Cash and cash equivalents, principally at estimated fair value (includes $1 and $1, respectively, relating to variable interest entities)	17,319	17,877
Accrued investment income (includes $1 and $1, respectively, relating to variable interest entities)	3,970	3,988
Premiums, reinsurance and other receivables (includes $6 and $2, respectively, relating to variable interest entities)	26,487	26,081
Deferred policy acquisition costs and value of business acquired	25,408	24,798
Current income tax recoverable	66	20
Goodwill	9,385	9,220
Other assets (includes $3 and $3, respectively, relating to variable interest entities)	8,073	7,767
Separate account assets	320,455	308,620
Total assets	925,199	898,764
Liabilities
Future policy benefits	205,836	199,971
Policyholder account balances	216,257	210,235
Other policy-related balances	14,708	14,386
Policyholder dividends payable	722	708
Policyholder dividend obligation	2,237	1,931
Payables for collateral under securities loaned and other transactions	33,725	33,264
Short-term debt	235	242
Long-term debt (includes $28 and $35, respectively, at estimated fair value, relating to variable interest entities)	19,508	16,502
Collateral financing arrangements	1,235	4,071
Junior subordinated debt securities	3,169	3,169
Deferred income tax liability	10,383	9,367
Other liabilities	27,060	28,818
Separate account liabilities	320,455	308,620
Total liabilities	855,530	831,284
Contingencies, Commitments and Guarantees (Note 14)
MetLife, Inc.’s stockholders’ equity:
Preferred stock, par value $0.01 per share; $2,100 aggregate liquidation preference	0	0
Common stock, par value $0.01 per share; 3,000,000,000 shares authorized; 1,166,331,934 and 1,164,029,985 shares issued, respectively; 1,063,465,987 and 1,095,519,005 shares outstanding, respectively	12	12
Additional paid-in capital	31,021	30,944
Retained earnings	35,270	34,480
Treasury stock, at cost; 102,865,947 and 68,510,980 shares, respectively	(5,284)	(3,474)
Accumulated other comprehensive income (loss)	8,436	5,347
Total MetLife, Inc.’s stockholders’ equity	69,455	67,309
Noncontrolling interests	214	171
Total equity	69,669	67,480
Total liabilities and equity	$ 925,199	$ 898,764