Income Taxes - Reconciliation of income taxes at the statutory rate to the provision for income taxes (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Earnings from continuing operations before income taxes (“EBT”)	$ 1,123	$ 1,335	$ 339
Income taxes at statutory rate	236	280	71
Effect of employee stock ownership plan dividend paid deduction	(8)	(16)	(2)
Effect of stock-based compensation	(5)	(13)	(4)
Effect of tax exempt interest	(6)	(8)	(10)
Effect of change in valuation allowance (excluding change in tax rate)	(9)	(4)	(117)
Effect of dividends received deduction	(2)	(2)	(2)
Effect of adjustments to prior year taxes	(3)	(1)	1
Effect of sale of subsidiaries	0	0	(72)
Effect of nondeductible expenses	8	8	4
Effect of foreign operations	7	0	149
Effect of other income tax reconciliation	7	10	7
Provision for income taxes as shown in the Statement of Earnings	$ 225	$ 254	$ 25
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income taxes at statutory rate as a percentage of EBT	21.00%	21.00%	21.00%
Effect of employee stock ownership plan dividend paid deduction as a percentage of EBT	(1.00%)	(1.00%)	(1.00%)
Effect of stock-based compensation as a percentage of EBT	0.00%	(1.00%)	(1.00%)
Effect of tax exempt interest as a percentage of EBT	(1.00%)	(1.00%)	(3.00%)
Effect of change in valuation allowance (excluding change in tax rate) as a percentage of EBT	(1.00%)	0.00%	(35.00%)
Effect of dividend received deduction as a percentage of EBT	0.00%	0.00%	(1.00%)
Effect of prior year income taxes as a percentage of EBT	0.00%	0.00%	0.00%
Effect sale of subsidiaries as a percentage of EBT	0.00%	0.00%	(21.00%)
Effect of nondeductible expenses as a percentage of EBT	1.00%	1.00%	1.00%
Effect of foreign operations as a percentage of EBT	1.00%	0.00%	44.00%
Effect of other income tax reconciliation as a percentage of EBT	0.00%	0.00%	3.00%
Provision for income taxes as shown in the Statement of Earnings as a percentage of EBT	20.00%	19.00%	7.00%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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