CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares shares in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 2.40	$ 2.28	$ 2.24
Unvested restricted shares (in shares)	1.3