STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Class A common stock
Dividends declared (in dollars per share)	$ 4.52	$ 4.215	$ 5.93
Class B common stock
Dividends declared (in dollars per share)	$ 678.00	$ 632.25	$ 889.50