Investments in equity securities (Tables)

3 Months Ended

Mar. 31, 2022

Investments Debt And Equity Securities [Abstract]

Schedule of investments in equity securities

Investments in equity securities as of March 31, 2022 and December 31, 2021 are summarized as follows (in millions).

	Cost Basis		Net Unrealized Gains		Fair Value
March 31, 2022*
Banks, insurance and finance	$	36,472	$	61,657	$	98,129
Consumer products		40,932		153,536		194,468
Commercial, industrial and other		68,132		29,809		97,941
	$	145,536	$	245,002	$	390,538

* Approximately 66% of the aggregate fair value was concentrated in four companies (American Express Company – $28.4 billion; Apple Inc. – $159.1 billion; Bank of America Corporation – $42.6 billion and Chevron Corporation – $25.9 billion).

	Cost Basis		Net Unrealized Gains		Fair Value
December 31, 2021*
Banks, insurance and finance	$	26,822	$	62,236	$	89,058
Consumer products		36,076		154,945		191,021
Commercial, industrial and other		41,707		28,933		70,640
	$	104,605	$	246,114	$	350,719

* Approximately 73% of the aggregate fair value was concentrated in four companies (American Express Company – $24.8 billion; Apple Inc. – $161.2 billion; Bank of America Corporation – $46.0 billion and The Coca-Cola Company – $23.7 billion).