Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 35,757	$ 5,705
Other comprehensive income:
Unrealized gains (losses) on investments	247	(236)
Applicable income taxes	(53)	51
Foreign currency translation	249	(315)
Applicable income taxes	6	(11)
Long duration insurance contract discount rate changes	(367)	3,078
Applicable income taxes	76	(659)
Defined benefit pension plans	50	26
Applicable income taxes	(6)	(5)
Other, net	(120)	87
Other comprehensive income, net	82	2,016
Comprehensive income	35,839	7,721
Comprehensive income attributable to noncontrolling interests	259	122
Comprehensive income attributable to Berkshire Hathaway shareholders	$ 35,580	$ 7,599

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