Earnings Per Share (Reconciliation Of Number Of Shares Used For Basic And Diluted Earnings Per Share ("EPS") Calculation ) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Earnings Per Share [Abstract]
Net income attributable to FMC Technologies, Inc.	$ 111.9	$ 94.3	$ 210.7	$ 179.5
Weighted average number of shares outstanding	240.2	241.9	240.2	241.8
Dilutive effect of restricted stock units and stock options	1.3	1.9	1.2	2.0
Total shares and dilutive securities	241.5	243.8	241.4	243.8
Basic earnings per share attributable to FMC Technologies, Inc.	$ 0.47	$ 0.39	$ 0.88	$ 0.74
Diluted earnings per share attributable to FMC Technologies, Inc.	$ 0.46	$ 0.39	$ 0.87	$ 0.74

Earnings Per Share (Reconciliation Of Number Of Shares Used For Basic And Diluted Earnings Per Share ("EPS") Calculation ) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified

3 Months Ended

6 Months Ended

Jun. 30, 2012

Jun. 30, 2011

Jun. 30, 2012

Jun. 30, 2011

Earnings Per Share [Abstract]

Net income attributable to FMC Technologies, Inc.

$ 111.9

$ 94.3

$ 210.7

$ 179.5

Weighted average number of shares outstanding

240.2

241.9

240.2

241.8

Dilutive effect of restricted stock units and stock options

1.3

1.9

1.2

2.0

Total shares and dilutive securities

241.5

243.8

241.4

243.8

Basic earnings per share attributable to FMC Technologies, Inc.

$ 0.47

$ 0.39

$ 0.88

$ 0.74

Diluted earnings per share attributable to FMC Technologies, Inc.

$ 0.46

$ 0.39

$ 0.87

$ 0.74

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

This element represents the income or loss from continuing operations attributable to the parent which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests, if any.

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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-Glossary Weighted-Average Number of Common Shares Outstanding

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+ Details