Supplemental Cash Flow Information - Cash Flow Information and Non-Cash Investing and Financing Activities (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
Non-cash investing and financing activities: | |||
Equity investment | $ 120 | $ 0 | $ 0 |
Settlement of bankruptcy obligations | 15 | 3 | 63 |
Capital lease obligations | 0 | 0 | 5 |
Supplemental information: | |||
Interest paid, net of amounts capitalized | 1,040 | 964 | 873 |
Income taxes paid | 20 | 16 | 20 |
American Airlines, Inc. [Member] | |||
Non-cash investing and financing activities: | |||
Equity investment | 120 | 0 | 0 |
Settlement of bankruptcy obligations | 15 | 3 | 63 |
Capital lease obligations | 0 | 0 | 5 |
Supplemental information: | |||
Interest paid, net of amounts capitalized | 942 | 867 | 787 |
Income taxes paid | $ 18 | $ 14 | $ 19 |