Impact of the COVID-19 Pandemic - Valuation of Goodwill and Indefinite-Lived Intangibles (Details) - USD ($)
$ in Millions |
Sep. 30, 2020 |
Dec. 31, 2019 |
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Goodwill |
$ 9,753
|
$ 9,781
|
| Fair Value Excess at 2019 Testing Date |
|
234.00%
|
| Goodwill and indefinite-lived intangibles |
15,671
|
$ 14,841
|
| International routes and slots |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Indefinite-lived intangibles |
2,583
|
$ 2,583
|
| International routes and slots | Minimum |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Fair Value Excess at 2019 Testing Date |
|
15.00%
|
| International routes and slots | Maximum |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Fair Value Excess at 2019 Testing Date |
|
29.00%
|
| Airline alliances |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Indefinite-lived intangibles |
1,863
|
$ 1,005
|
| Airline alliances | Minimum |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Fair Value Excess at 2019 Testing Date |
|
67.00%
|
| Airline alliances | Maximum |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Fair Value Excess at 2019 Testing Date |
|
576.00%
|
| Airline alliances | LATAM |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Indefinite-lived intangibles |
1,200
|
|
| Delta tradename |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Indefinite-lived intangibles |
850
|
$ 850
|
| Fair Value Excess at 2019 Testing Date |
|
185.00%
|
| Domestic slots |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Indefinite-lived intangibles |
$ 622
|
$ 622
|
| Domestic slots | Minimum |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Fair Value Excess at 2019 Testing Date |
|
61.00%
|
| Domestic slots | Maximum |
|
|
| Indefinite-lived Intangible Assets [Line Items] |
|
|
| Fair Value Excess at 2019 Testing Date |
|
181.00%
|