Share-Based Compensation (Summary of Option Transactions) (Details)			12 Months Ended
	Jan. 11, 2017 $ / shares	[2]	Dec. 31, 2019 $ / shares shares		Dec. 31, 2018 $ / shares shares		Dec. 31, 2018 $ / shares € / shares shares		Dec. 31, 2017 $ / shares shares		Dec. 31, 2017 $ / shares € / shares shares		Dec. 31, 2016 € / shares shares
Share-based Payment Arrangement [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price | $ / shares			$ 29.04	[1]	$ 41.97	[1]	$ 41.97	[1]	$ 34.42	[1]	$ 34.42	[1]
Stock Option Activity
Number of options outstanding, beginning balance			4,658,400		4,883,800		4,883,800		2,188,800		2,188,800
Number of options adjusted due to FMC technologies transaction									2,188,800	[2]	2,188,800	[2]
Number of options granted			800,000.0		602,200		602,200		798,400		798,400
Number of options exercised			0						0		0
Number of options cancelled			(616,000.0)		(827,600)		(827,600)		(292,200)		(292,200)
Number of options outstanding, ending balance			4,842,400		4,658,400		4,658,400		4,883,800		4,883,800		2,188,800
Stock Option Weighted Average Exercise Price
Options outstanding, weighted average exercise price per share, beginning balance (in dollars per share) | (per share)			$ 33.68				$ 36.35				$ 61.72
Options adjusted due to FMC Technologies transaction, weighted average exercise price per share (in dollars per share) | $ / shares	$ 0.00								$ 0	[2]
Options granted, weighted average exercise price per share (in dollars per share) | (per share)			20.98		$ 30.70						29.29
Options exercised, weighted average exercise price per share (in dollars per share) | (per share)			0								0
Options cancelled, weighted average exercise price per share (in dollars per share) | (per share)			48.65		47.20						47.60
Options outstanding, weighted average exercise price per share, ending balance (in dollars per share) | (per share)			$ 29.68		$ 33.68						$ 36.35		€ 61.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding, Weighted average remaining contractual term (in years)			5 years 3 months 18 days		4 years 9 months 18 days		4 years 9 months 18 days		4 years 7 months 6 days		4 years 7 months 6 days		5 years
Options exercisable, number of options (in shares)			1,617,700
Options exercisable, weighted average exercise price per share (in dollars per share) | $ / shares			$ 35.92
Options exercisable, Weighted average remaining contractual term (in years)			3 years

[1] The weighted-average fair value was based on performance share units granted during the period.

[2] The Weighted-Average Grant Date Fair Value for the increase in shares due to the merger remains at $0.00 in order to recalculate the new weighted average for the December 31, 2016 non-vested shares (see Note 2).