Retirement and Postretirement Benefit Plans (Details 6)	12 Months Ended
Feb. 29, 2012	Feb. 28, 2011
U.S. Pension Plans [Member]
Summary of assets of plans held in trust
Defined Benefit Plan, Equity Securities	51.00%	51.00%
Defined Benefit Plan, Debt Securities	48.00%	48.00%
Defined Benefit Plan, Cash and Cash Equivalents	1.00%	1.00%
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Summary of assets of plans held in trust
Defined Benefit Plan, Equity Securities	30.00%	43.00%
Defined Benefit Plan, Debt Securities	69.00%	54.00%
Defined Benefit Plan, Cash and Cash Equivalents	1.00%	3.00%
Equity securities, minimum	15.00%
Equity securities, maximum	30.00%
Debt securities, minimum	65.00%
Debt securities, maximum	85.00%
Cash and cash equivalents, minimum	0.00%
Cash and cash equivalents, maximum	15.00%
International Pension Plans [Member]
Summary of assets of plans held in trust
Defined Benefit Plan, Equity Securities	31.00%	31.00%
Defined Benefit Plan, Debt Securities	64.00%	67.00%
Defined Benefit Plan, Cash and Cash Equivalents	5.00%	2.00%

Defined Benefit Plan Cash And Cash Equivalents.

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- Definition

Defined benefit plan target allocation percentage of assets cash and cash equivalents, range maximum.

+ References

No definition available.

+ Details

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- Definition

Defined benefit plan target allocation percentage of assets cash and cash equivalents, range minimum.

+ References

No definition available.

+ Details

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- Definition

The percentage of the fair value of debt securities to the fair value of total plan assets held as of the measurement date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

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- Definition

The percentage of the fair value of equity securities to the fair value of total plan assets held as of the measurement date.

+ References

+ Details

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- Definition

The percentage of the fair value of investments other than debt securities, equity securities, and real estate to the fair value of total plan assets held as of the measurement date.

+ References

+ Details

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- Definition

Target allocation maximum percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

+ References

No definition available.

+ Details

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- Definition

Target allocation minimum percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(i)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

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- Definition

Target allocation maximum percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

+ References

No definition available.

+ Details

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- Definition

Target allocation minimum percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

+ References

No definition available.

+ Details

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