Investments in equity securities (Tables)

6 Months Ended

Jun. 30, 2021

Investments Debt And Equity Securities [Abstract]

Schedule of investments in equity securities

Investments in equity securities as of June 30, 2021 and December 31, 2020 are summarized in the tables below (in millions).

	Cost Basis		Net Unrealized Gains		Fair Value
June 30, 2021*
Banks, insurance and finance	$	27,384	$	59,237	$	86,621
Consumer products		34,885		115,926		150,811
Commercial, industrial and other		42,950		27,560		70,510
	$	105,219	$	202,723	$	307,942

* Approximately 69% of the aggregate fair value was concentrated in four companies (American Express Company – $25.1 billion; Apple Inc. – $124.3 billion; Bank of America Corporation – $42.6 billion and The Coca-Cola Company – $21.6 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).