EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net Income Attributable to Common Shareholders	$ 289,380	$ 260,370	$ 801,693	$ 750,577
Weighted Average Common Shares Outstanding:
Basic (in shares)	317,360,110	317,393,029	317,367,252	317,415,848
Dilutive Effect (in shares)	607,201	556,367	581,246	591,194
Diluted (in shares)	317,967,311	317,949,396	317,948,498	318,007,042
Basic EPS (in dollars per share)	$ 0.91	$ 0.82	$ 2.53	$ 2.36
Diluted EPS (in dollars per share)	$ 0.91	$ 0.82	$ 2.52	$ 2.36