Goodwill (Carrying Amount of Goodwill) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($)
Goodwill [Roll Forward]
December 31, 2015	$ 514.7
Impairment	(2.8)	[1]
Translation	10.6
June 30, 2016	522.5
Subsea Technologies
Goodwill [Roll Forward]
December 31, 2015	357.4
UCOS product group transfer	2.7	[2]
Translation	8.3
June 30, 2016	368.4
Surface Technologies
Goodwill [Roll Forward]
December 31, 2015	71.9
Impairment	(2.8)	[1]
Translation	2.3
June 30, 2016	71.4
Energy Infrastructure
Goodwill [Roll Forward]
December 31, 2015	85.4
UCOS product group transfer	(2.7)	[2]
June 30, 2016	$ 82.7

[1] Refer to Note 5 for additional disclosure related to impairment of goodwill during the six months ended June 30, 2016.

[2] Beginning in the first quarter of 2016, UCOS® product group results are included in Subsea Technologies. Refer to Note 18 for additional disclosure.