Equity Equity (Narrative) (Details) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($) shares	Sep. 30, 2016 USD ($)	Sep. 30, 2017 € / shares shares	Sep. 30, 2017 $ / shares shares	Feb. 01, 2014 USD ($)
Capital Units, Authorized			1,185,040,000	1,185,040,000
Stock Repurchase Program, Authorized Amount | $					$ 1,500.0
Treasury Stock, Shares, Acquired	10,600,000
Repurchase of ordinary shares | $	$ (911.1)	$ (250.1)
Par Value US [Member]
Common Stock, Par or Stated Value Per Share | $ / shares				$ 1.00
Preferred Stock, Par or Stated Value Per Share | $ / shares				$ 0.001
Par Value Euro [Member]
Common Stock, Par or Stated Value Per Share | € / shares			€ 1.00
Preferred Stock [Member]
Preferred Stock, Shares Authorized			10,000,000	10,000,000
Common Stock [Member] | Par Value US [Member]
Common Stock, Shares Authorized			1,175,000,000	1,175,000,000
Common Stock [Member] | Par Value Euro [Member]
Common Stock, Shares Authorized			40,000	40,000