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Recent Financing Transactions Recent Financing Transactions
3 Months Ended
Mar. 31, 2013
Recent Financing Transactions [Abstract]  
Debt Disclosure [Text Block]
(4)
Recent Financing Transactions

In March 2013, PacifiCorp replaced its $630 million unsecured revolving credit facility expiring in July 2013 with a $600 million unsecured revolving credit facility expiring in March 2018. The new credit facility, which supports PacifiCorp's commercial paper program and provides for the issuance of letters of credit, has a variable interest rate based on the London Interbank Offered Rate or a base rate, at PacifiCorp's option, plus a spread that varies based on PacifiCorp's credit ratings for its senior unsecured long-term debt securities. As of March 31, 2013, PacifiCorp had no borrowings outstanding under this credit facility. The credit facility requires that PacifiCorp's ratio of consolidated debt, including current maturities, to total capitalization not exceed 0.65 to 1.0 as of the last day of each quarter. As of March 31, 2013, $312 million of letters of credit were issued under this credit agreement to support variable-rate tax-exempt bond obligations. These letters of credit were previously issued under the revolving credit facility that was replaced.

In March 2013, PacifiCorp obtained $289 million of letters of credit to support variable-rate tax-exempt bond obligations. These letters of credit expire through March 2015 and replaced certain letters of credit previously issued under one of the revolving credit facilities.