Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Assets
Amortized cost of fixed maturity securities valuation allowances	$ 193	$ 183
Amortized Cost	304,962	306,025
Mortgage loans valuation allowances	692	527
Real estate and real estate joint ventures - FVO	13,155	13,137
Net Investment in Lease, Allowance for Credit Loss	25	26
Other Invested Assets - Leveraged and Direct Financing Leases	2,050	1,926
Other invested assets - VIE	$ 19,479	$ 20,038
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	1,191,525,076	1,189,831,471
Common stock, shares outstanding	769,179,074	779,098,414
Treasury stock, shares	422,346,002	410,733,057
Real estate and real estate joint venture [Member]
Assets
Real estate and real estate joint ventures - FVO	$ 294	$ 299
Variable interest entities
Assets
Other invested assets - VIE	$ 333	$ 326