Investments in equity securities (Tables)

12 Months Ended

Dec. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of investments in equity securities

Investments in equity securities are summarized as follows (in millions).

	Cost Basis		Net Unrealized Gains		Fair Value
December 31, 2023 *
Banks, insurance and finance	$	27,136	$	51,176	$	78,312
Consumer products		34,248		166,895		201,143
Commercial, industrial and other		48,032		26,355		74,387
	$	109,416	$	244,426	$	353,842

* Approximately 79% of the aggregate fair value was concentrated in five companies (American Express Company – $28.4 billion; Apple Inc. – $174.3 billion; Bank of America Corporation – $34.8 billion; The Coca-Cola Company – $23.6 billion and Chevron Corporation – $18.8 billion).

	Cost Basis		Net Unrealized Gains		Fair Value
December 31, 2022 *
Banks, insurance and finance	$	25,893	$	43,663	$	69,556
Consumer products		40,508		112,384		152,892
Commercial, industrial and other		65,209		21,136		86,345
	$	131,610	$	177,183	$	308,793

* Approximately 75% of the aggregate fair value was concentrated in five companies (American Express Company – $22.4 billion; Apple Inc. – $119.0 billion; Bank of America Corporation – $34.2 billion; The Coca-Cola Company – $25.4 billion and Chevron Corporation – $30.0 billion).