Condensed Consolidated Balance Sheets (Parenthetical)	Sep. 30, 2015 € / shares shares	Dec. 31, 2014 $ / shares shares
Statement of Financial Position [Abstract]
Ordinary shares, nominal value | (per share)	€ 0.01	$ 0.5
Ordinary shares, shares authorized	1,200,000,000	1,500,000,000
Ordinary shares, shares issued	491,736,385	546,658,507
Treasury stock, shares	0	171,435,200