Discontinued Operations - Narrative (Details) - Annuity subsidiaries $ in Millions		2 Months Ended	5 Months Ended
May 31, 2021 USD ($)	May 31, 2021 USD ($)	May 31, 2021 USD ($)
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from sale of businesses	$ 3,570
Post-closing adjustments	34	$ 34	$ 34
Gain on sale, net of tax	$ 656	$ 697	$ 656

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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