Short-Term Credit Arrangements and Borrowings (Notes)

12 Months Ended

Dec. 31, 2012

Short-term Debt [Abstract]

SHORT-TERM CREDIT ARRANGEMENTS AND BORROWINGS

SHORT-TERM CREDIT ARRANGEMENTS AND BORROWINGS

DTE Electric has a $300 million unsecured revolving credit agreement with a syndicate of 20 banks that may be used for general corporate borrowings, but is intended to provide liquidity support for the Company's commercial paper program. No one bank provides more than 8.5% of the commitment in the facility. Borrowings under the facility are available at prevailing short-term interest rates. The facility will expire in October 2016. At December 31, 2012, there was $130 million outstanding against this facility, while there were no amounts outstanding against this facility at December 31, 2011.

The agreement requires the Company to maintain a total funded debt to capitalization ratio of no more than 0.65 to 1. In the agreements, “total funded debt” means all indebtedness of the Company and its consolidatedsubsidiaries, including capital lease obligations, hedge agreements and guarantees of third parties' debt, but excluding contingent obligations and nonrecourse and junior subordinated debt. “Capitalization” means the sum of (a) total funded debt plus (b) “consolidated net worth,” which is equal to consolidated total stockholders' equity of the Company and its consolidated subsidiaries (excluding pension effects under certain FASB statements), as determined in accordance with accounting principles generally accepted in the United States of America. At December 31, 2012, the total funded debt to total capitalization ratio for DTE Electric was 0.52 to 1.

The weighted average interest rate for short-term borrowings was 0.4% at December 31, 2012.