Impairment, Restructuring and Other Expense (Tables)

12 Months Ended

Dec. 31, 2017

Restructuring and Related Activities [Abstract]

Impairment, restructuring and other expenses

Impairment, restructuring and other expense were as follows:

	Year Ended December 31,
(In millions)	2017		2016		2015
Impairment expense:
Subsea	$	11.5	$	23.0	$	42.9
Onshore/Offshore	—		14.6		—
Surface Technologies	10.2		—		—
Corporate and other	12.6		0.6		2.3
Total impairment expense	34.3		38.2		45.2
Restructuring and other expense:
Subsea	$	88.4	$	58.7	$	34.0
Onshore/Offshore	27.0		214.4		342.2
Surface Technologies	9.0		—		—
Corporate and other	32.8		31.7		16.7
Total restructuring and other expense	157.2		304.8		392.9
Total impairment, restructuring and other expense	$	191.5	$	343.0	$	438.1