Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Assets
Amortized cost of fixed maturity securities available-for-sale	$ 288,559	$ 286,816
Contractholder-directed equity securities and fair value option securities relating to variable interest entities	13,245	12,616
Mortgage loans valuation allowances	350	342
Mortgage Loans on Real Estate, Commercial and Consumer, Net	78,601	75,752
Leveraged and direct financing leases	2,392	2,300
Other invested assets relating to variable interest entities	18,175	18,190
Cash and cash equivalents relating to variable interest entities	14,506	15,821
Premiums, reinsurance and other receivables relating to variable interest entities	20,615	19,644
Other assets relating to variable interest entities	10,100	8,408
Liabilities
Long-term debt, at estimated fair value, relating to variable interest entities	12,850	12,829
Other liabilities relating to variable interest entities	$ 25,091	$ 22,964
MetLife, Inc.’s stockholders’ equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred Stock, Liquidation Preference, Value	$ 3,405	$ 3,405
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000,000,000	3,000,000,000
Common stock, shares issued	1,174,590,790	1,171,824,242
Common stock, shares outstanding	950,181,456	958,613,542
Treasury stock, shares	224,409,334	213,210,700
Residential mortgage loans - FVO
Assets
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 276	$ 299
Variable interest entities
Assets
Contractholder-directed equity securities and fair value option securities relating to variable interest entities	3	4
Other invested assets relating to variable interest entities	214	141
Cash and cash equivalents relating to variable interest entities	19	52
Premiums, reinsurance and other receivables relating to variable interest entities	2	3
Other assets relating to variable interest entities	2	2
Liabilities
Long-term debt, at estimated fair value, relating to variable interest entities	5	5
Other liabilities relating to variable interest entities	$ 1	$ 1