Basis of Presentation - Schedule of earnings per share, basic and diluted (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net earnings from continuing operations	$ 358	$ 995	$ 749	$ 1,894
Preferred stock dividends	(14)	(14)	(29)	(15)
Net earnings from continuing operations for basic EPS calculation	344		720
Net earnings from continuing operations for diluted EPS calculation	344		720
Net earnings	419	1,036	852	1,947
Preferred stock dividends	(14)	$ (14)	(29)	$ (15)
Net earnings for basic EPS calculation	405		823
Net earnings for diluted EPS calculation	$ 405		$ 823

Amount after tax of income (loss) from continuing operations attributable to the parent.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

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