Pending Disposition - Hong Kong Sale (Details) - MetLife Hong Kong [Member] $ in Millions	9 Months Ended
Sep. 30, 2019 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	$ (140)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	(100)
Goodwill, Written off Related to Sale of Business Unit	75
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	(40)
Disposal Group, Including Discontinued Operation, Assets	$ 2,900

Amount classified as assets attributable to disposal group held for sale or disposed of.

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