| **Pay vs Performance Disclosure - USD ($) $ in Millions** | 3 Months Ended | 9 Months Ended |
|-----------------------------------------------------------|----------------|----------------|
||
| **Pay vs Performance Disclosure**                         |           |           |   |   |
| Net income                                                | $ 383          | $ (300)        | $ 1,069 | $ 646 |

| 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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