EQUITY - Share Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	111 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020
Share Repurchase Program
Number of shares of common stock repurchased	1,062,881	366,793	14,778,890
Average price paid per share	$ 112.46	$ 95.36	$ 62.27
Total purchase price	$ 119.5	$ 35.0	$ 920.3

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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