Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Preferred Stock, No par value [Member]	Common Stock, No par value [Member]	Additional paid in capital [Member]	Retained earnings [Member]	Accumulated other comprehensive income (loss) [Member]	Total FMC-AG and Co. KGaA [Member]	Noncontrolling interests not subject to put provisions [Member]
Shareholders equity at Dec. 31, 2009	$ 6,798,390	$ 4,343	$ 365,672	$ 3,243,466	$ 3,111,530	$ (49,724)	$ 6,675,287	$ 123,103
Shares issued at Dec. 31, 2009		3,884,328	295,746,635
Proceeds from exercise of options and related tax effects	102,246	97	3,330	98,819			102,246
Shares from exercise of options and related tax effects		72,840	2,532,366
Compensation expense related to stock options	27,981			27,981			27,981
Dividends paid	231,967				231,967		231,967	0
Purchase (sale) of noncontrolling interests	11,032			(6,263)			(6,263)	17,295
Cash contributions from noncontrolling interests	54,225							54,225
Changes in fair value of noncontrolling interests	(24,222)			(24,222)			(24,222)
Comprehensive income (loss)
Net Income	1,036,557				978,517		978,517	58,040
Other comprehensive income (loss) - net	(141,881)					(144,321)	(144,321)	2,440
Total comprehensive income	894,676						834,196	60,480
Shareholders equity at Dec. 31, 2010	7,523,911	4,440	369,002	3,339,781	3,858,080	(194,045)	7,377,258	146,653
Shares issued at Dec. 31, 2010		3,957,168	298,279,001
Proceeds from exercise of options and related tax effects	30,189	9	984	29,196			30,189
Shares from exercise of options and related tax effects		6,125	685,666
Compensation expense related to stock options	14,631			14,631			14,631
Dividends paid	280,649				280,649		280,649	0
Purchase (sale) of noncontrolling interests	(6,475)			596			596	(7,071)
Cash contributions from noncontrolling interests	23,787							23,787
Changes in fair value of noncontrolling interests	(15,266)			(15,266)			(15,266)
Comprehensive income (loss)
Net Income	515,790				481,462		481,462	34,328
Other comprehensive income (loss) - net	162,659					162,180	162,180	479
Total comprehensive income	678,449						643,642	34,807
Shareholders equity at Jun. 30, 2011	$ 7,921,003	$ 4,449	$ 369,986	$ 3,368,938	$ 4,058,893	$ (31,865)	$ 7,770,401	$ 150,602
Shares issued at Jun. 30, 2011		3,963,293	298,964,667

Changes in the fair value of noncontrolling interests.

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. It does not include amounts related to noncontrolling interests subject to put provisions.

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- Definition

This element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on qualifying hedges, unrealized holding gains (losses) on available-for-sale securities, minimum pension liability, and cumulative translation adjustment, less amounts attributable to noncontrolling interests subject to put provisions.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest, but less amounts attributable to noncontrolling interests subject to put provisions.

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- Definition

This element represents the amount of recognized share-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 39

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
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- Definition

Aggregate cash, stock, and paid-in-kind dividends declared for all securities (common shares, preferred shares) during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 01-6
-Paragraph 14
-Subparagraph l

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Decrease in noncontrolling interest balance from payment of dividends or other distributions to noncontrolling interest holders.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(2)

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Increase in noncontrolling interest balance from issuance of additional shares to noncontrolling interest holders or the sale of all or a portion of the parent's equity interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(2)

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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- Definition

Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 25

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
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-Paragraph 26

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A3
-Appendix A

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Number of shares issued during the period as a result of the exercise of stock options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5

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Value stock issued during the period as a result of the exercise of stock options.

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