EARNINGS PER SHARE - Components of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net Income Attributable to Common Shareholders	$ 283,166	$ 346,260	$ 913,829	$ 933,244
Net Income Attributable to Common Shareholders	$ 283,200	$ 346,300	$ 913,800	$ 933,200
Weighted Average Common Shares Outstanding:
Basic (in shares)	344,023,846	343,076,614	343,848,905	337,375,172
Dilutive Effect of:
Share-Based Compensation Awards and Other (in shares)	645,936	696,988	631,151	686,403
Equity Forward Sale Agreement (in shares)	0	0	0	362,525
Total Dilutive Effect (in shares)	645,936	696,988	631,151	1,048,928
Diluted (in shares)	344,669,782	343,773,602	344,480,056	338,424,100
Basic EPS (in dollars per share)	$ 0.82	$ 1.01	$ 2.66	$ 2.77
Diluted EPS (in dollars per share)	$ 0.82	$ 1.01	$ 2.65	$ 2.76