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Debt and Letters of Credit
3 Months Ended
Mar. 31, 2020
Debt Disclosure [Abstract]  
Debt and Letters of Credit Debt and Letters of Credit
As of March 31, 2020, letters of credit totaling $336 million were outstanding under committed lines of credit, which consist of a $1.7 billion Revolving Loan and Letter of Credit Facility and a $1.8 billion Revolving Loan and Letter of Credit Facility. Both facilities mature in February 2022. Each of the credit facilities may be increased up to an additional $500 million subject to certain conditions, and contain customary financial and restrictive covenants, including a debt-to-capitalization ratio that cannot exceed 0.6 to 1.0 and a limitation on the aggregate amount of debt of the greater of $750 million or €750 million for our subsidiaries. As of March 31, 2020, our financial covenant limits our borrowings to approximately $675 million under our committed credit facilities. Borrowings under both facilities, which may be denominated in USD, EUR, GBP or CAD, bear interest at rates based on the Eurodollar Rate or an alternative base rate, plus an applicable borrowing margin.
Due to the delays in the preparation of our financial statements for the quarters ended March 31, 2020 and June 30, 2020, we were not in compliance with certain reporting covenants under these facilities. We have entered into amendments to extend the first, second and third quarter deadlines until October 31, November 30 and December 31, 2020, respectively.
As of March 31, 2020, letters of credit totaling $968 million were also outstanding under uncommitted lines of credit.