Derivatives - Gains (losses) included in the Statement of Earnings for changes in the fair value of derivatives (Details) - USD ($) $ in Millions	5 Months Ended	12 Months Ended
	May 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		$ (17)	$ 14	$ (61)
Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	$ 20	0		(60)
Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		(17)	(6)	(1)
Interest rate swaps | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	0	0		0
Interest rate swaps | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		0	0	0
MBS with embedded derivatives | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	(1)	0		(2)
MBS with embedded derivatives | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		(12)	(6)	(1)
Total return swap | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		(5)	0	0
Fixed-indexed and variable-indexed annuities (embedded derivative) | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	(222)	0		(283)
Equity index call options | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	237	0		223
Equity index put options | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	5	0		3
Reinsurance contract (embedded derivative) | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	1	0		(1)
Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	14	40
Designated as hedging instrument | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	14	0		40
Designated as hedging instrument | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	0	0
Designated as hedging instrument | Interest rate swaps | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	14	0		40
Designated as hedging instrument | Interest rate swaps | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	0	0
Designated as hedging instrument | MBS with embedded derivatives | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	0	0		0
Designated as hedging instrument | MBS with embedded derivatives | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	0	0
Designated as hedging instrument | Total return swap | Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	$ 0	0
Designated as hedging instrument | Fixed-indexed and variable-indexed annuities (embedded derivative) | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	0	0		0
Designated as hedging instrument | Equity index call options | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	0	0		0
Designated as hedging instrument | Equity index put options | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	0	0		0
Designated as hedging instrument | Reinsurance contract (embedded derivative) | Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings	$ 0	$ 0		$ 0