Equity Equity (Common Stock Changes in Number of Shares Issued, Held in Treasury and Oustanding) (Details) - shares		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common Stock, Shares, Issued		85,310,598	85,310,598
Stock Issued During Period, Shares, New Issues			(6,172,840)
Common Stock Issuable [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued		85,310,598	85,310,598	79,137,758	79,137,758
Stock Issued During Period, Shares, New Issues		0	(6,172,840)
Stock Based Compensation Shares	[1]	0	0	0
Treasury Stock, Shares, Acquired			0	0
Common Stock Held In Treasury [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued		18,139,868	17,353,697	16,481,656	16,323,390
Stock Issued During Period, Shares, New Issues		(852,037)	0
Stock Based Compensation Shares	[1]	(65,866)	(202,372)	(388,348)
Treasury Stock, Shares, Acquired			(1,074,413)	(546,614)
Common Stock Outstanding [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued		67,170,730	67,956,901	62,656,102	62,814,368
Stock Issued During Period, Shares, New Issues		(852,037)	(6,172,840)
Stock Based Compensation Shares	[1]	(65,866)	(202,372)	(388,348)
Treasury Stock, Shares, Acquired			(1,074,413)	(546,614)

[1] Represents net shares issued from treasury pursuant to the Company’s stock-based compensation programs.