EARNINGS PER SHARE - Components of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net Income Attributable to Common Shareholders	$ 264,520	$ 252,232	$ 630,663	$ 586,984
Net Income Attributable to Common Shareholders	$ 264,500	$ 252,200	$ 630,700	$ 587,000
Weighted Average Common Shares Outstanding:
Basic (in shares)	343,844,626	337,946,663	343,761,435	334,524,452
Dilutive Effect of:
Share-Based Compensation Awards and Other (in shares)	591,070	614,986	623,758	681,110
Equity Forward Sale Agreement (in shares)	0	0	0	543,842
Total Dilutive Effect (in shares)	591,070	614,986	623,758	1,224,952
Diluted (in shares)	344,435,696	338,561,649	344,385,193	335,749,404
Basic EPS (in dollars per share)	$ 0.77	$ 0.75	$ 1.83	$ 1.75
Diluted EPS (in dollars per share)	$ 0.77	$ 0.75	$ 1.83	$ 1.75