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Debt (Other Facilities) (Narrative) (Details) (USD $)
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12 Months Ended |
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Jan. 31, 2012
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Jan. 31, 2011
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| Debt Instrument [Line Items] |
|
|
| U.S. trade receivables |
$ 2,871,243,000 |
$ 2,896,671,000 |
| Line of credit, outstanding amount |
48,000,000 |
550,200,000 |
| Standby letters of credit issued |
75,100,000 |
|
| Other committed and uncommitted lines of credit and overdraft facilities |
1,500,000,000 |
|
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Receivables Securitization Program [Member]
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|
|
| Debt Instrument [Line Items] |
|
|
| Line of credit facility, initiation date |
August 2011 |
|
| Maximum borrowing capacity |
400,000,000 |
|
| U.S. trade receivables |
619,800,000 |
549,800,000 |
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Multi-Currency Revolving Credit Facility [Member]
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|
|
| Debt Instrument [Line Items] |
|
|
| Revolving credit loans, expiration date |
March 2012 |
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| Multi-currency Revolving Credit Facility |
250,000,000 |
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Credit Agreement [Member]
|
|
|
| Debt Instrument [Line Items] |
|
|
| Line of credit facility, initiation date |
September 2011 |
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| Maximum borrowing capacity |
500,000,000 |
|
| Possible future increase of maximum borrowing capacity |
750,000,000 |
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| Revolving credit loans, expiration date |
September 27, 2016 |
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Other Committed And Uncommitted Revolving Credit Facilities, Expiring On Various Dates Through Fiscal 2013 [Member]
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|
|
| Debt Instrument [Line Items] |
|
|
| Other committed and uncommitted lines of credit and overdraft facilities |
$ 550,200,000 |
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