CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares		1 Months Ended	3 Months Ended
	Feb. 22, 2019	Apr. 30, 2019	Mar. 31, 2019	Mar. 31, 2018
Ddividends to shareholders (in dollars per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.06
Dividends to preferred shareholders (in dollars per share)			$ 0.75
Mandatory Convertible Preferred Shares
Dividends to preferred shareholders (in dollars per share)	$ 0.75	$ 0.75