Investments in equity securities (Tables)

9 Months Ended

Sep. 30, 2021

Investments Debt And Equity Securities [Abstract]

Schedule of investments in equity securities

Investments in equity securities as of September 30, 2021 and December 31, 2020 are summarized as follows (in millions).

	Cost Basis		Net Unrealized Gains		Fair Value
September 30, 2021*
Banks, insurance and finance	$	26,809	$	60,931	$	87,740
Consumer products		34,973		119,421		154,394
Commercial, industrial and other		42,406		26,199		68,605
	$	104,188	$	206,551	$	310,739

* Approximately 70% of the aggregate fair value was concentrated in four companies (American Express Company – $25.4 billion; Apple Inc. – $128.4 billion; Bank of America Corporation – $43.9 billion and The Coca-Cola Company – $21.0 billion).

	Cost Basis		Net Unrealized Gains		Fair Value
December 31, 2020*
Banks, insurance and finance	$	26,312	$	40,167	$	66,479
Consumer products		34,747		111,583		146,330
Commercial, industrial and other		47,561		20,800		68,361
	$	108,620	$	172,550	$	281,170

* Approximately 68% of the aggregate fair value was concentrated in four companies (American Express Company – $18.3 billion; Apple Inc. – $120.4 billion; Bank of America Corporation – $31.3 billion and The Coca-Cola Company – $21.9 billion).