Goodwill (Carrying Amount of Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Roll Forward]
December 31, 2015	$ 514.7
Impairment	(2.8)
Translation	8.2
March 31, 2016	520.1
Subsea Technologies
Goodwill [Roll Forward]
December 31, 2015	357.4
UCOS product group transfer	2.7	[1]
Translation	5.7
March 31, 2016	365.8
Surface Technologies
Goodwill [Roll Forward]
December 31, 2015	71.9
Impairment	(2.8)	[2]
Translation	2.5
March 31, 2016	71.6
Energy Infrastructure
Goodwill [Roll Forward]
December 31, 2015	85.4
UCOS product group transfer	(2.7)	[1]
March 31, 2016	$ 82.7

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

[2] Refer to Note 4 for additional disclosure related to impairment of goodwill during the three months ended March 31, 2016.