Condensed Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Stockholders Equity [Abstract]
Dividend, per share	$ 0.70	$ 0.69	$ 1.395	$ 1.375