| **Pay vs Performance Disclosure - USD ($) $ in Millions** | 3 Months Ended | 9 Months Ended |
|-----------------------------------------------------------|----------------|----------------|
||
| **Pay vs Performance Disclosure**                         |           |           |   |   |
| Net Income (Loss)                                         | $ (99)         | $ (416)        | $ 660 | $ (1,500) |

| X                                                                                                                                                                                                                                                                                                    |
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| - References
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| - Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
+ References
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