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Supplemental Cash Flow Information (Tables)
12 Months Ended
Dec. 31, 2020
Other Significant Noncash Transactions [Line Items]  
Cash Flow Information and Non-Cash Investing and Financing Activities
Supplemental disclosure of cash flow information and non-cash investing and financing activities are as follows (in millions):
 Year Ended December 31,
 202020192018
Non-cash investing and financing activities:
Settlement of bankruptcy obligations$56 $$— 
Supplemental information:
Interest paid, net944 1,111 1,091 
Income taxes paid18 
American Airlines, Inc.  
Other Significant Noncash Transactions [Line Items]  
Cash Flow Information and Non-Cash Investing and Financing Activities
Supplemental disclosure of cash flow information and non-cash investing and financing activities are as follows (in millions):
 Year Ended December 31,
 202020192018
Non-cash investing and financing activities:
Settlement of bankruptcy obligations$56 $$— 
Supplemental information:
Interest paid, net877 1,025 1,009 
Income taxes paid16