v3.26.1
Debt - Narrative (Details)
$ in Millions
Jan. 02, 2026
USD ($)
Jun. 30, 2026
USD ($)
note
Dec. 31, 2025
USD ($)
Dec. 22, 2020
USD ($)
Debt Instrument [Line Items]        
Debt discount, net of amortization   $ 9 $ 10  
Deferred financing costs   18 21  
Long-term debt, gross   6,249 6,140  
Line of Credit        
Debt Instrument [Line Items]        
Long-term debt, gross   2,890 2,565  
Secured Debt        
Debt Instrument [Line Items]        
Long-term debt, gross   315 $ 476  
Credit Agreement | Secured Debt        
Debt Instrument [Line Items]        
Long-term debt       $ 1,000
Credit Agreement | Letter of Credit        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   100    
5.25% Senior Notes Due July 2030 | Senior Notes        
Debt Instrument [Line Items]        
Interest Rate     5.25%  
Issue price, percentage of face amount     0.98991  
Debt discount, net of amortization     $ 5  
Deferred financing costs     $ 5  
Maximum unencumbered assets to debt ratio     1.50  
5.25% Senior Notes Due July 2030 | Senior Notes | Minimum        
Debt Instrument [Line Items]        
Maximum total indebtedness to total assets ratio     0.60  
Maximum total secured indebtedness to total assets ratio     0.40  
Minimum interest coverage ratio     1.50  
5.25% Senior Notes Due July 2030 | Senior Notes | Maximum        
Debt Instrument [Line Items]        
Maximum total indebtedness to total assets ratio     1.00  
Maximum total secured indebtedness to total assets ratio     1.00  
Minimum interest coverage ratio     1.00  
4.125% Senior Notes Due November 2031 | Senior Notes        
Debt Instrument [Line Items]        
Interest Rate     4.125%  
Issue price, percentage of face amount     0.99324  
Unamortized discount (premium), net     $ 6  
Deferred financing costs     7  
MetLife Real Estate Lending, LLC, Notes Due 2026, 2028, and 2029 | Secured Debt        
Debt Instrument [Line Items]        
Long-term debt, gross   $ 309 469  
Number of notes outstanding | note   2    
Other Fixed-Rate Real Estate And Equipment Secured Financing Agreements | Secured Debt        
Debt Instrument [Line Items]        
Long-term debt, gross   $ 6 7  
MetLife Real Estate Notes | Secured Debt        
Debt Instrument [Line Items]        
Repayments of debt $ 160      
Revolving Credit Facility | Line of Credit        
Debt Instrument [Line Items]        
Long-term debt, gross   1,890 1,565  
Revolving Credit Facility | Credit Agreement | Line of Credit        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity       $ 3,500
Letters of credit, outstanding amount   $ 61 $ 61