Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets
Amortized cost of fixed maturity securities valuation allowances	$ 160	$ 184
Amortized Cost	307,421	300,555
Mortgage loans valuation allowances	800	721
Real estate and real estate joint ventures (includes $378 and $317, respectively, under the fair value option; $65 and $0, respectively, of real estate held-for-sale; $183 and $0, respectively, relating to variable interest entities)	13,342	13,332
Real Estate Held-for-sale	65	0
Net Investment in Lease, Allowance for Credit Loss	0	23
Other Invested Assets - Leveraged and Direct Financing Leases	1,851	1,993
Premiums, reinsurance and other receivables relating to variable interest entities	29,761	28,971
Other invested assets, at estimated fair value	18,504	18,202
Liabilities
Short-term Debt	$ 465	$ 119
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	1,194,168,628	1,191,823,651
Common stock, shares outstanding	689,211,065	730,821,111
Treasury stock, shares	504,957,563	461,002,540
Residential mortgage loans - FVO
Assets
Real estate and real estate joint ventures (includes $378 and $317, respectively, under the fair value option; $65 and $0, respectively, of real estate held-for-sale; $183 and $0, respectively, relating to variable interest entities)	$ 378	$ 317
Variable interest entities
Assets
Real estate and real estate joint ventures (includes $378 and $317, respectively, under the fair value option; $65 and $0, respectively, of real estate held-for-sale; $183 and $0, respectively, relating to variable interest entities)	183	0
Premiums, reinsurance and other receivables relating to variable interest entities	47	0
Other invested assets, at estimated fair value	424	333
Liabilities
Short-term Debt	$ 133	$ 0