Subsequent Event Subsequent Event (Narrative) (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	Apr. 11, 2013
Subsequent Event [Member]
Subsequent Event [Line Items]
Contingent consideration payment	$ 58.8

Amount of cash payment resulting from a contingent consideration arrangement.

No definition available.

Name:	fti_ContingentConsiderationPayment
Namespace Prefix:	fti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant