Consolidated Statements of Equity (Parentheticals) - $ / shares shares in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Treasury shares	0.4	0.5	0.2
Common Shares, $1.25 Par Value	$ 1.25	$ 1.25	$ 1.25