CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, no par value (in usd per share)	$ 0	$ 0
Common stock, shares issued	342,926,531	334,402,964
Common stock, shares outstanding	342,926,531	334,402,964