Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 4.21	$ 3.72	$ 3.21
Cash dividends paid per common share (in dollars per share)	$ 4.21	$ 3.72	$ 3.21