Legal Proceedings	9 Months Ended
Sep. 30, 2021
Long-term Purchase Commitment [Line Items]
Legal Proceedings	Legal Proceedings Chapter 11 Cases. On November 29, 2011, AMR Corporation (AMR), American, and certain of AMR’s other direct and indirect domestic subsidiaries (the Debtors) filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of New York (the Bankruptcy Court). On October 21, 2013, the Bankruptcy Court entered an order approving and confirming the Debtors’ fourth amended joint plan of reorganization (as amended, the Plan). On the Effective Date, December 9, 2013, the Debtors consummated their reorganization pursuant to the Plan and completed the acquisition of US Airways Group, Inc. by AMR (the Merger). The Plan established a DCR to hold shares of AAG common stock reserved for issuance to disputed claimholders at the Effective Date that ultimately become holders of allowed claims. The shares of AAG common stock issued to the DCR were originally issued on December 13, 2013 and have at all times since been included in the number of shares issued and outstanding as reported from time to time in our quarterly and annual reports, including for calculating earnings per common share. As disputed claims are resolved, the claimants receive distributions of shares from the DCR. We are not required to distribute additional shares above the limits contemplated by the Plan, even if the shares remaining for distribution in the DCR are not sufficient to fully pay any additional allowed unsecured claims. If any of the reserved shares remain undistributed upon resolution of all remaining disputed claims, such shares will not be returned to us but rather will be distributed to former AMR stockholders and former convertible noteholders treated as stockholders under the Plan. As of September 30, 2021, the DCR held approximately 4.8 million shares of AAG common stock. We have filed a motion to close the bankruptcy case, which is set for a hearing on November 4, 2021. If granted, the order will allow us to settle various bankruptcy-related claims from the DCR, distribute all remaining shares (and accumulated dividends) thereunder and facilitate an end to the bankruptcy case. Private Party Antitrust Action Related to Passenger Capacity. We, along with Delta Air Lines, Inc., Southwest Airlines Co., United Airlines, Inc. and, in the case of litigation filed in Canada, Air Canada, were named as defendants in approximately 100 putative class action lawsuits alleging unlawful agreements with respect to air passenger capacity. The U.S. lawsuits were consolidated in the Federal District Court for the District of Columbia (the DC Court). On June 15, 2018, we reached a settlement agreement with the plaintiffs in the amount of $45 million to resolve all class claims in the U.S. lawsuits. That settlement was approved by the DC Court on May 13, 2019, however three parties who objected to the settlement have appealed that decision to the United States Court of Appeals for the District of Columbia. We believe these appeals are without merit and intend to vigorously defend against them. Private Party Antitrust Action Related to the Merger. On August 6, 2013, a lawsuit captioned Carolyn Fjord, et al., v. AMR Corporation, et al., was filed in the Bankruptcy Court. The complaint named as defendants US Airways Group, Inc., US Airways, Inc., AMR and American, alleged that the effect of the Merger may be to create a monopoly in violation of Section 7 of the Clayton Antitrust Act, and sought injunctive relief and/or divestiture. On November 27, 2013, the Bankruptcy Court denied plaintiffs’ motion to preliminarily enjoin the Merger. On August 29, 2018, the Bankruptcy Court denied in part defendants' motion for summary judgment, and fully denied plaintiffs' cross-motion for summary judgment. The parties' evidentiary cases were presented before the Bankruptcy Court in a bench trial in March 2019 and the parties submitted proposed findings of fact and conclusions of law and made closing arguments in April 2019. On January 29, 2021, the Bankruptcy Court published its decision finding in our favor. The plaintiffs have appealed this ruling to the U.S. District Court, which remains pending. We believe this lawsuit is without merit and intend to continue to vigorously defend against it, including against plaintiffs' appeal of the Bankruptcy Court's January 29, 2021 ruling. Government Antitrust Action Related to the Northeast Alliance. On September 21, 2021, the United States Department of Justice (DOJ), joined by Attorneys General from six states and the District of Columbia, filed an antitrust complaint against American and JetBlue Airways Corporation (JetBlue) alleging that American and JetBlue violated U.S. antitrust laws in connection with the previously disclosed Northeast Alliance (NEA) arrangement. We believe the complaint is without merit and intend to defend against it vigorously. Also on September 21, 2021, the United States Department of Transportation (DOT) published a Clarification Notice relating to the agreement that had been reached between the DOT, American, and JetBlue in January 2021, at the conclusion of the DOT’s review of the NEA (DOT Agreement). The DOT Clarification Notice stated, among other things, that the DOT Agreement remains in force during the pendency of the DOJ action against the NEA and, while the DOT retains independent statutory authority to prohibit unfair methods of competition in air transportation, the DOT intends to defer to DOJ to resolve the antitrust concerns that DOJ has identified with respect to the NEA. The DOT simultaneously published a Notice Staying Proceeding in relation to a complaint by Spirit Airlines, Inc. regarding the NEA, pending resolution of the DOJ action described above. General. In addition to the specifically identified legal proceedings, we and our subsidiaries are also engaged in other legal proceedings from time to time. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within our control. Therefore, although we will vigorously defend ourselves in each of the actions described above and such other legal proceedings, their ultimate resolution and potential financial and other impacts on us are uncertain but could be material.
American Airlines, Inc.
Long-term Purchase Commitment [Line Items]
Legal Proceedings	Legal Proceedings Chapter 11 Cases. On November 29, 2011, AMR Corporation (AMR), American, and certain of AMR’s other direct and indirect domestic subsidiaries (the Debtors) filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of New York (the Bankruptcy Court). On October 21, 2013, the Bankruptcy Court entered an order approving and confirming the Debtors’ fourth amended joint plan of reorganization (as amended, the Plan). On the Effective Date, December 9, 2013, the Debtors consummated their reorganization pursuant to the Plan and completed the acquisition of US Airways Group, Inc. by AMR (the Merger). The Plan established a disputed claims reserve (DCR) to hold shares of AAG common stock reserved for issuance to disputed claimholders at the Effective Date that ultimately become holders of allowed claims. The shares of AAG common stock issued to the DCR were originally issued on December 13, 2013 and have at all times since been included in the number of shares issued and outstanding as reported by AAG from time to time in its quarterly and annual reports, including for calculating earnings per common share. As disputed claims are resolved, the claimants receive distributions of shares from the DCR. American is not required to distribute additional shares above the limits contemplated by the Plan, even if the shares remaining for distribution in the DCR are not sufficient to fully pay any additional allowed unsecured claims. If any of the reserved shares remain undistributed upon resolution of all remaining disputed claims, such shares will not be returned to AAG but rather will be distributed to former AMR stockholders and former convertible noteholders treated as stockholders under the Plan. As of September 30, 2021, the DCR held approximately 4.8 million shares of AAG common stock. American has filed a motion to close the bankruptcy case, which is set for a hearing on November 4, 2021. If granted, the order will allow American to settle various bankruptcy-related claims from the DCR, distribute all remaining shares (and accumulated dividends) thereunder and facilitate an end to the bankruptcy case. Private Party Antitrust Action Related to Passenger Capacity. American, along with Delta Air Lines, Inc., Southwest Airlines Co., United Airlines, Inc. and, in the case of litigation filed in Canada, Air Canada, were named as defendants in approximately 100 putative class action lawsuits alleging unlawful agreements with respect to air passenger capacity. The U.S. lawsuits were consolidated in the Federal District Court for the District of Columbia (the DC Court). On June 15, 2018, American reached a settlement agreement with the plaintiffs in the amount of $45 million to resolve all class claims in the U.S. lawsuits. That settlement was approved by the DC Court on May 13, 2019, however three parties who objected to the settlement have appealed that decision to the United States Court of Appeals for the District of Columbia. American believes these appeals are without merit and intends to vigorously defend against them. Private Party Antitrust Action Related to the Merger. On August 6, 2013, a lawsuit captioned Carolyn Fjord, et al., v. AMR Corporation, et al., was filed in the Bankruptcy Court. The complaint named as defendants US Airways Group, Inc., US Airways, Inc., AMR and American, alleged that the effect of the Merger may be to create a monopoly in violation of Section 7 of the Clayton Antitrust Act, and sought injunctive relief and/or divestiture. On November 27, 2013, the Bankruptcy Court denied plaintiffs’ motion to preliminarily enjoin the Merger. On August 29, 2018, the Bankruptcy Court denied in part defendants' motion for summary judgment, and fully denied plaintiffs' cross-motion for summary judgment. The parties' evidentiary cases were presented before the Bankruptcy Court in a bench trial in March 2019 and the parties submitted proposed findings of fact and conclusions of law and made closing arguments in April 2019. On January 29, 2021, the Bankruptcy Court published its decision finding in American’s favor. The plaintiffs have appealed this ruling to the U.S. District Court, which remains pending. American believes this lawsuit is without merit and intends to continue to vigorously defend against it, including against plaintiffs' appeal of the Bankruptcy Court's January 29, 2021 ruling. Government Antitrust Action Related to the Northeast Alliance. On September 21, 2021, the United States Department of Justice (DOJ), joined by Attorneys General from six states and the District of Columbia, filed an antitrust complaint against American and JetBlue Airways Corporation (JetBlue) alleging that American and JetBlue violated U.S. antitrust laws in connection with the previously disclosed Northeast Alliance (NEA) arrangement. American believes this complaint is without merit and intends to defend against it vigorously. Also on September 21, 2021, the United States Department of Transportation (DOT) published a Clarification Notice relating to the agreement that had been reached between the DOT, American, and JetBlue in January 2021, at the conclusion of the DOT’s review of the NEA (DOT Agreement). The DOT Clarification Notice stated, among other things, that the DOT Agreement remains in force during the pendency of the DOJ action against the NEA and, while the DOT retains independent statutory authority to prohibit unfair methods of competition in air transportation, the DOT intends to defer to DOJ to resolve the antitrust concerns that DOJ has identified with respect to the NEA. The DOT simultaneously published a Notice Staying Proceeding in relation to a complaint by Spirit Airlines, Inc. regarding the NEA, pending resolution of the DOJ action described above. General. In addition to the specifically identified legal proceedings, American and its subsidiaries are also engaged in other legal proceedings from time to time. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within American’s control. Therefore, although American will vigorously defend itself in each of the actions described above and such other legal proceedings, their ultimate resolution and potential financial and other impacts on American are uncertain but could be material.

Legal Proceedings

9 Months Ended

Sep. 30, 2021

Long-term Purchase Commitment [Line Items]

Chapter 11 Cases. On November 29, 2011, AMR Corporation (AMR), American, and certain of AMR’s other direct and indirect domestic subsidiaries (the Debtors) filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of New York (the Bankruptcy Court). On October 21, 2013, the Bankruptcy Court entered an order approving and confirming the Debtors’ fourth amended joint plan of reorganization (as amended, the Plan). On the Effective Date, December 9, 2013, the Debtors consummated their reorganization pursuant to the Plan and completed the acquisition of US Airways Group, Inc. by AMR (the Merger).

The Plan established a DCR to hold shares of AAG common stock reserved for issuance to disputed claimholders at the Effective Date that ultimately become holders of allowed claims. The shares of AAG common stock issued to the DCR were originally issued on December 13, 2013 and have at all times since been included in the number of shares issued and outstanding as reported from time to time in our quarterly and annual reports, including for calculating earnings per common share. As disputed claims are resolved, the claimants receive distributions of shares from the DCR. We are not required to distribute additional shares above the limits contemplated by the Plan, even if the shares remaining for distribution in the DCR are not sufficient to fully pay any additional allowed unsecured claims. If any of the reserved shares remain undistributed upon resolution of all remaining disputed claims, such shares will not be returned to us but rather will be distributed to former AMR stockholders and former convertible noteholders treated as stockholders under the Plan. As of September 30, 2021, the DCR held approximately 4.8 million shares of AAG common stock.

We have filed a motion to close the bankruptcy case, which is set for a hearing on November 4, 2021. If granted, the order will allow us to settle various bankruptcy-related claims from the DCR, distribute all remaining shares (and accumulated dividends) thereunder and facilitate an end to the bankruptcy case.

Private Party Antitrust Action Related to Passenger Capacity. We, along with Delta Air Lines, Inc., Southwest Airlines Co., United Airlines, Inc. and, in the case of litigation filed in Canada, Air Canada, were named as defendants in approximately 100 putative class action lawsuits alleging unlawful agreements with respect to air passenger capacity. The U.S. lawsuits were consolidated in the Federal District Court for the District of Columbia (the DC Court). On June 15, 2018, we reached a settlement agreement with the plaintiffs in the amount of $45 million to resolve all class claims in the U.S. lawsuits. That settlement was approved by the DC Court on May 13, 2019, however three parties who objected to the settlement have appealed that decision to the United States Court of Appeals for the District of Columbia. We believe these appeals are without merit and intend to vigorously defend against them.

Private Party Antitrust Action Related to the Merger. On August 6, 2013, a lawsuit captioned Carolyn Fjord, et al., v. AMR Corporation, et al., was filed in the Bankruptcy Court. The complaint named as defendants US Airways Group, Inc., US Airways, Inc., AMR and American, alleged that the effect of the Merger may be to create a monopoly in violation of Section 7 of the Clayton Antitrust Act, and sought injunctive relief and/or divestiture. On November 27, 2013, the Bankruptcy Court denied plaintiffs’ motion to preliminarily enjoin the Merger. On August 29, 2018, the Bankruptcy Court denied in part defendants' motion for summary judgment, and fully denied plaintiffs' cross-motion for summary judgment. The parties' evidentiary cases were presented before the Bankruptcy Court in a bench trial in March 2019 and the parties submitted proposed findings of fact and conclusions of law and made closing arguments in April 2019. On January 29, 2021, the Bankruptcy Court published its decision finding in our favor. The plaintiffs have appealed this ruling to the U.S. District Court, which remains pending. We believe this lawsuit is without merit and intend to continue to vigorously defend against it, including against plaintiffs' appeal of the Bankruptcy Court's January 29, 2021 ruling.

Government Antitrust Action Related to the Northeast Alliance. On September 21, 2021, the United States Department of Justice (DOJ), joined by Attorneys General from six states and the District of Columbia, filed an antitrust complaint against American and JetBlue Airways Corporation (JetBlue) alleging that American and JetBlue violated U.S. antitrust laws in connection with the previously disclosed Northeast Alliance (NEA) arrangement. We believe the complaint is without merit and intend to defend against it vigorously.

Also on September 21, 2021, the United States Department of Transportation (DOT) published a Clarification Notice relating to the agreement that had been reached between the DOT, American, and JetBlue in January 2021, at the conclusion of the DOT’s review of the NEA (DOT Agreement). The DOT Clarification Notice stated, among other things, that the DOT Agreement remains in force during the pendency of the DOJ action against the NEA and, while the DOT retains independent statutory authority to prohibit unfair methods of competition in air transportation, the DOT intends to defer to DOJ to resolve the antitrust concerns that DOJ has identified with respect to the NEA. The DOT simultaneously published a Notice Staying Proceeding in relation to a complaint by Spirit Airlines, Inc. regarding the NEA, pending resolution of the DOJ action described above.

General. In addition to the specifically identified legal proceedings, we and our subsidiaries are also engaged in other legal proceedings from time to time. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within our control. Therefore, although we will vigorously defend ourselves in each of the actions described above and such other legal proceedings, their ultimate resolution and potential financial and other impacts on us are uncertain but could be material.

American Airlines, Inc.

Long-term Purchase Commitment [Line Items]

Legal Proceedings

The Plan established a disputed claims reserve (DCR) to hold shares of AAG common stock reserved for issuance to disputed claimholders at the Effective Date that ultimately become holders of allowed claims. The shares of AAG common stock issued to the DCR were originally issued on December 13, 2013 and have at all times since been included in the number of shares issued and outstanding as reported by AAG from time to time in its quarterly and annual reports, including for calculating earnings per common share. As disputed claims are resolved, the claimants receive distributions of shares from the DCR. American is not required to distribute additional shares above the limits contemplated by the Plan, even if the shares remaining for distribution in the DCR are not sufficient to fully pay any additional allowed unsecured claims. If any of the reserved shares remain undistributed upon resolution of all remaining disputed claims, such shares will not be returned to AAG but rather will be distributed to former AMR stockholders and former convertible noteholders treated as stockholders under the Plan. As of September 30, 2021, the DCR held approximately 4.8 million shares of AAG common stock.

American has filed a motion to close the bankruptcy case, which is set for a hearing on November 4, 2021. If granted, the order will allow American to settle various bankruptcy-related claims from the DCR, distribute all remaining shares (and accumulated dividends) thereunder and facilitate an end to the bankruptcy case.

Private Party Antitrust Action Related to Passenger Capacity. American, along with Delta Air Lines, Inc., Southwest Airlines Co., United Airlines, Inc. and, in the case of litigation filed in Canada, Air Canada, were named as defendants in approximately 100 putative class action lawsuits alleging unlawful agreements with respect to air passenger capacity. The U.S. lawsuits were consolidated in the Federal District Court for the District of Columbia (the DC Court). On June 15, 2018, American reached a settlement agreement with the plaintiffs in the amount of $45 million to resolve all class claims in the U.S. lawsuits. That settlement was approved by the DC Court on May 13, 2019, however three parties who objected to the settlement have appealed that decision to the United States Court of Appeals for the District of Columbia. American believes these appeals are without merit and intends to vigorously defend against them.

Private Party Antitrust Action Related to the Merger. On August 6, 2013, a lawsuit captioned Carolyn Fjord, et al., v. AMR Corporation, et al., was filed in the Bankruptcy Court. The complaint named as defendants US Airways Group, Inc., US Airways, Inc., AMR and American, alleged that the effect of the Merger may be to create a monopoly in violation of Section 7 of the Clayton Antitrust Act, and sought injunctive relief and/or divestiture. On November 27, 2013, the Bankruptcy Court denied plaintiffs’ motion to preliminarily enjoin the Merger. On August 29, 2018, the Bankruptcy Court denied in part defendants' motion for summary judgment, and fully denied plaintiffs' cross-motion for summary judgment. The parties' evidentiary cases were presented before the Bankruptcy Court in a bench trial in March 2019 and the parties submitted proposed findings of fact and conclusions of law and made closing arguments in April 2019. On January 29, 2021, the Bankruptcy Court published its decision finding in American’s favor. The plaintiffs have appealed this ruling to the U.S. District Court, which remains pending. American believes this lawsuit is without merit and intends to continue to vigorously defend against it, including against plaintiffs' appeal of the Bankruptcy Court's January 29, 2021 ruling.

Government Antitrust Action Related to the Northeast Alliance. On September 21, 2021, the United States Department of Justice (DOJ), joined by Attorneys General from six states and the District of Columbia, filed an antitrust complaint against American and JetBlue Airways Corporation (JetBlue) alleging that American and JetBlue violated U.S. antitrust laws in connection with the previously disclosed Northeast Alliance (NEA) arrangement. American believes this complaint is without merit and intends to defend against it vigorously.

General. In addition to the specifically identified legal proceedings, American and its subsidiaries are also engaged in other legal proceedings from time to time. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within American’s control. Therefore, although American will vigorously defend itself in each of the actions described above and such other legal proceedings, their ultimate resolution and potential financial and other impacts on American are uncertain but could be material.