Basis of Presentation - Schedule of earnings per share, basic and diluted (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net earnings from continuing operations	$ 153	$ 465	$ 902	$ 2,359
Preferred stock dividends	(14)	(14)	(43)	(30)
Net earnings from continuing operations for basic EPS calculation	139	451	859	2,329
Net earnings from continuing operations for diluted EPS calculation	139	451	859	2,329
Net earnings	231	538	1,083	2,485
Preferred stock dividends	(14)	(14)	(43)	(30)
Net earnings for basic EPS calculation	217	524	1,040	2,455
Net earnings for diluted EPS calculation	$ 217	$ 524	$ 1,040	$ 2,455