Consolidated Statement Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]
Dividends to stockholders, per share (in dollars per share)	$ 0.52	$ 0.51	$ 1.56	$ 1.53