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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2021
Supplemental Cash Flow Information [Abstract] |
Net Cash Paid For Interest and Income Taxes | Net cash paid (received) for interest and income taxes was as follows for the nine-month periods ended September 30, 2021 and 2020 (in millions):
| Nine Months Ended September 30,
| 2021 |  | 2020
Interest (1) | $ | 134 |  |  | $ | 152 |
Income Taxes, Net of Refunds Received | $ | 775 |  |  | $ | (263) |
(1)Net of capitalized interest of $24 million for both the nine months ended September 30, 2021 and 2020.

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