XML 112 R90.htm IDEA: XBRL DOCUMENT
v3.22.4

Deferred Policy Acquisition Costs, Value of Business Acquired and Other Policy-Related Intangibles (Negative VOBA) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Finite Lived Intangible Liabilities |  |  |
Balance at January 1, | $ 623 | $ 738 | $ 750
Amortization of negative VOBA | (41) | (34) | (45)
Effect of foreign currency translation and other | (63) | (81) | 33
Balance at December 31, | 519 | 623 | 738
Accumulated amortization | $ 3,383 | $ 3,342 | $ 3,308

X
- Definition Finite Lived Intangible Liabilities [Abstract] + References No definition available. + Details
Name: | met_FiniteLivedIntangibleLiabilitiesAbstract
Namespace Prefix: | met_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of liabilities, excluding financial liabilities, lacking physical substance with a finite life. + References No definition available. + Details
Name: | met_FiniteLivedIntangibleLiabilitiesAccumulatedAmortization
Namespace Prefix: | met_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the increase (decrease) during the period in negative value of business acquired liabilities due to foreign currency translation. + References No definition available. + Details
Name: | met_FiniteLivedIntangibleLiabilitiesForeignCurrencyTranslation
Namespace Prefix: | met_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The carrying amount of the estimated fair value of the in-force contract obligations that exceeded the assumed in-force insurance policy liabilities as of the balance sheet date. + References No definition available. + Details
Name: | met_FiniteLivedIntangibleLiabilitiesNet
Namespace Prefix: | met_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Negative value of business acquired is amortized over the policy period reflecting the expected pattern of losses included in the liability. Such amortization is recorded in other expenses. + References No definition available. + Details
Name: | met_NegativeValueOfBusinessAcquiredAmortization
Namespace Prefix: | met_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration