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, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		$ 7	$ (17)	$ 14
Annuity subsidiaries
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings	$ 0	0		20
Continuing operations
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		7	(17)	(6)
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
Fixed maturities with embedded derivatives | Continuing operations | Realized gains (losses) on securities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		(2)	(12)	(6)
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	0	0
Fixed maturities with embedded derivatives | Continuing operations | Investment income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedges, gains (losses) included in net earnings		(4)	0	0
Cash flow hedges - gains (losses) reclassified from AOCI to 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	0	0		(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		13	(5)	0
Cash flow hedges - gains (losses) reclassified from AOCI to net earnings		0	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	0	0		(222)
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	0	0		237
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	0	0		5
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	0	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		(26)	0	14
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	0	0		14
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		(26)	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	0	0		14
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		(26)	$ 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 | 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