Risk Management	12 Months Ended
Risk Management	Dec. 31, 2017
Debt Instrument [Line Items]
Risk Management	Risk Management Our economic prospects are heavily dependent upon two variables we cannot control: the health of the economy and the price of fuel. Due to the discretionary nature of business and leisure travel spending and the highly competitive nature of the airline industry, our revenues are heavily influenced by the condition of the U.S. economy and economies in other regions of the world. Unfavorable conditions in these broader economies have resulted, and may result in the future, in decreased passenger demand for air travel, changes in booking practices and related reactions by our competitors, all of which in turn have had, and may have in the future, a negative effect on our business. In addition, during challenging economic times, actions by our competitors to increase their revenues can have an adverse impact on our revenues. Our operating results are materially impacted by changes in the availability, price volatility and cost of aircraft fuel, which represents one of the largest single cost items in our business. Jet fuel market prices have fluctuated substantially over the past several years and prices continue to be highly volatile. Because of the amount of fuel needed to operate our business, even a relatively small increase or decrease in the price of fuel can have a material effect on our operating results and liquidity. These additional factors could impact our results of operations, financial performance and liquidity: (a) Credit Risk Most of our receivables relate to tickets sold to individual passengers through the use of major credit cards or to tickets sold by other airlines and used by passengers on American. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. We do not believe we are subject to any significant concentration of credit risk. (b) Interest Rate Risk We have exposure to market risk associated with changes in interest rates related primarily to our variable rate debt obligations. Interest rates on $9.6 billion principal amount of long-term debt as of December 31, 2017 are subject to adjustment to reflect changes in floating interest rates. The weighted average effective interest rate on our variable rate debt was 3.4% at December 31, 2017. We do not currently have an interest rate hedge program. (c) Foreign Currency Risk We are exposed to the effect of foreign exchange rate fluctuations on the U.S. dollar value of foreign currency-denominated operating revenues and expenses. Our largest exposure comes from the British pound, Euro, Canadian dollar and various Latin American currencies, primarily the Brazilian real. We do not currently have a foreign currency hedge program. See Part I, Item 1A. Risk Factors – “We operate a global business with international operations that are subject to economic and political instability and have been, and in the future may continue to be, adversely affected by numerous events, circumstances or government actions beyond our control” for unaudited additional discussion of this risk.
American Airlines, Inc. [Member]
Debt Instrument [Line Items]
Risk Management	Risk Management American’s economic prospects are heavily dependent upon two variables it cannot control: the health of the economy and the price of fuel. Due to the discretionary nature of business and leisure travel spending and the highly competitive nature of the airline industry, American’s revenues are heavily influenced by the condition of the U.S. economy and economies in other regions of the world. Unfavorable conditions in these broader economies have resulted, and may result in the future, in decreased passenger demand for air travel, changes in booking practices and related reactions by American’s competitors, all of which in turn have had, and may have in the future, a negative effect on American’s business. In addition, during challenging economic times, actions by its competitors to increase their revenues can have an adverse impact on American’s revenues. American’s operating results are materially impacted by changes in the availability, price volatility and cost of aircraft fuel, which represents one of the largest single cost items in American’s business. Jet fuel market prices have fluctuated substantially over the past several years and prices continue to be highly volatile. Because of the amount of fuel needed to operate American’s business, even a relatively small increase or decrease in the price of fuel can have a material effect on American’s operating results and liquidity. These additional factors could impact American’s results of operations, financial performance and liquidity: (a) Credit Risk Most of American’s receivables relate to tickets sold to individual passengers through the use of major credit cards or to tickets sold by other airlines and used by passengers on American. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. American does not believe it is subject to any significant concentration of credit risk. (b) Interest Rate Risk American has exposure to market risk associated with changes in interest rates related primarily to its variable rate debt obligations. Interest rates on $9.6 billion principal amount of long-term debt as of December 31, 2017 are subject to adjustment to reflect changes in floating interest rates. The weighted average effective interest rate on American’s variable rate debt was 3.4% at December 31, 2017. American does not currently have an interest rate hedge program. (c) Foreign Currency Risk American is exposed to the effect of foreign exchange rate fluctuations on the U.S. dollar value of foreign currency-denominated operating revenues and expenses. American’s largest exposure comes from the British pound, Euro, Canadian dollar and various Latin American currencies, primarily the Brazilian real. American does not currently have a foreign currency hedge program. See Part I, Item 1A. Risk Factors – “We operate a global business with international operations that are subject to economic and political instability and have been, and in the future may continue to be, adversely affected by numerous events, circumstances or government actions beyond our control” for unaudited additional discussion of this risk.