Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 5,585	$ 11,840
Other comprehensive income:
Unrealized appreciation of investments	(236)	(87)
Applicable income taxes	51	20
Foreign currency translation	(316)	(285)
Applicable income taxes	(11)	(3)
Defined benefit pension plans	26	61
Applicable income taxes	(5)	(20)
Other, net	87	(6)
Other comprehensive income, net	(404)	(320)
Comprehensive income	5,181	11,520
Comprehensive income attributable to noncontrolling interests	122	136
Comprehensive income attributable to Berkshire Hathaway shareholders	$ 5,059	$ 11,384

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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