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DEBT - Additional Information (Detail)
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3 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | |||
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Jun. 30, 2011
USD ($)
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Mar. 31, 2011
USD ($)
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Mar. 31, 2011
Senior Unsecured Revolving Credit Facility
USD ($)
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Jun. 30, 2011
Senior Unsecured Revolving Credit Facility
USD ($)
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Mar. 31, 2011
Senior Unsecured Revolving Credit Facility
After Amendment
USD ($)
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Jun. 30, 2011
364-Day Revolving Credit
CAD
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Mar. 31, 2011
After Amendment
USD ($)
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| Debt Instrument [Line Items] | |||||||
| Credit facility borrowing capacity | $ 850,000,000 | $ 500,000,000 | 10,000,000 | ||||
| Credit Facility expiration date | 2011-07-24 | 2015-02-18 | 2011-06-30 | ||||
| Line of Credit Facility, Potential Maximum Borrowing Capacity | 750,000,000 | ||||||
| Credit facility, Available for borrowings | 498,400,000 | ||||||
| Line of Credit Facility Outstanding Amount | 0 | ||||||
| Commercial paper, Maturity date | Maturities of commercial paper can range from overnight to 397 days | ||||||
| Commercial paper notes | 850,000,000 | 500,000,000 | |||||
| Commercial paper Outstanding Amount | $ 0 |
| X | ||||||||||
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- Definition
Amount of commercial paper outstanding as of the balance sheet date.
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- Definition
Commercial Paper Maturity Period
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- Definition
Commercial Paper, Maximum Borrowing Capacity
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| X | ||||||||||
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- Definition
Line of Credit Facility, Potential Maximum Borrowing Capacity
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| X | ||||||||||
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- Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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