Debt	3 Months Ended
Mar. 31, 2013
Debt	E. Debt – In January 2013, Alcoa fully borrowed $150 under an existing credit facility, which was repaid in March 2013. This borrowing was subject to an interest rate equivalent to the 1-month LIBOR plus a 1.375% margin. The related revolving credit agreement was terminated effective March 19, 2013. In the first quarter of 2013, Alcoa entered into three agreements, each with a different financial institution, for a $200 term loan, a $150 revolving credit facility, and a $75 revolving credit facility. The purpose of any borrowings under all three arrangements is to provide working capital and for other general corporate purposes. The term loan was fully drawn on the same date as the agreement and was subject to an interest rate equivalent to the 1-month LIBOR plus a 1.5% margin. In March 2013, Alcoa and the lender agreed to terminate the term loan and entered into a revolving credit agreement, providing a $200 credit facility. As provided for in the terms of the revolving credit agreement, the outstanding term loan was automatically deemed to be an outstanding borrowing under the credit facility. This borrowing was subject to an interest rate equivalent to the 1-week LIBOR plus a 1.25% margin. As of March 31, 2013, the outstanding borrowing under this credit facility was repaid. Additionally, in March 2013, Alcoa fully borrowed and repaid the $75 credit facility. This borrowing was subject to an interest rate equivalent to the 1-week LIBOR plus a 0.95% margin. The $200 revolving credit facility expires in July 2013, the $150 revolving credit facility expires in February 2014, and the $75 revolving credit facility expires in December 2013. The covenants contained in all three arrangements are the same as Alcoa’s Five-Year Revolving Credit Agreement (see the Commercial Paper section of Note K to the Consolidated Financial Statements included in Alcoa’s 2012 Form 10-K). Also in the first quarter of 2013, Alcoa’s subsidiary, Alumínio, borrowed and repaid a total of $52 in new loans with a weighted-average interest rate of 0.72% and a weighted-average maturity of 70 days from a financial institution. The purpose of these borrowings was to support Alumínio’s export operations.

E. Debt – In January 2013, Alcoa fully borrowed $150 under an existing credit facility, which was repaid in March 2013. This borrowing was subject to an interest rate equivalent to the 1-month LIBOR plus a 1.375% margin. The related revolving credit agreement was terminated effective March 19, 2013.

In the first quarter of 2013, Alcoa entered into three agreements, each with a different financial institution, for a $200 term loan, a $150 revolving credit facility, and a $75 revolving credit facility. The purpose of any borrowings under all three arrangements is to provide working capital and for other general corporate purposes.

The term loan was fully drawn on the same date as the agreement and was subject to an interest rate equivalent to the 1-month LIBOR plus a 1.5% margin. In March 2013, Alcoa and the lender agreed to terminate the term loan and entered into a revolving credit agreement, providing a $200 credit facility. As provided for in the terms of the revolving credit agreement, the outstanding term loan was automatically deemed to be an outstanding borrowing under the credit facility. This borrowing was subject to an interest rate equivalent to the 1-week LIBOR plus a 1.25% margin. As of March 31, 2013, the outstanding borrowing under this credit facility was repaid.

Additionally, in March 2013, Alcoa fully borrowed and repaid the $75 credit facility. This borrowing was subject to an interest rate equivalent to the 1-week LIBOR plus a 0.95% margin.

The $200 revolving credit facility expires in July 2013, the $150 revolving credit facility expires in February 2014, and the $75 revolving credit facility expires in December 2013. The covenants contained in all three arrangements are the same as Alcoa’s Five-Year Revolving Credit Agreement (see the Commercial Paper section of Note K to the Consolidated Financial Statements included in Alcoa’s 2012 Form 10-K).

Also in the first quarter of 2013, Alcoa’s subsidiary, Alumínio, borrowed and repaid a total of $52 in new loans with a weighted-average interest rate of 0.72% and a weighted-average maturity of 70 days from a financial institution. The purpose of these borrowings was to support Alumínio’s export operations.