Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets
Amortized Cost	$ 299,532	$ 310,884
Amortized cost of fixed maturity securities valuation allowances	261	91
Mortgage loans valuation allowances	486	634
Residential mortgage loans — FVO	82,055	79,353
Mortgage loans held-for-sale	24	0
Real estate and real estate joint ventures - FVO	12,376	12,216
Real Estate Held-for-sale	0	175
Other Invested Assets - Leveraged and Direct Financing Leases	1,849	1,930
Other invested assets - VIE	19,901	18,655
Net Investment in Lease, Allowance for Credit Loss	$ 33	$ 40
MetLife, Inc.’s stockholders’ equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, Liquidation Preference, Value	$ 3,905	$ 3,905
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000,000,000	3,000,000,000
Common stock, shares issued	1,189,520,578	1,186,540,473
Common stock, shares outstanding	797,580,831	825,540,267
Treasury stock, shares	391,939,747	361,000,206
Residential mortgage loans - FVO
Assets
Residential mortgage loans — FVO	$ 109	$ 127
Real estate and real estate joint venture [Member]
Assets
Real estate and real estate joint ventures - FVO	309	240
Variable interest entities
Assets
Other invested assets - VIE	$ 343	$ 351