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Supplemental Cash Flow Information (Tables) | 3 Months Ended
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Mar. 31, 2021
Supplemental Cash Flow Information [Abstract] |
Net Cash Paid For Interest and Income Taxes | Net cash paid for interest and income taxes was as follows for the three-month periods ended March 31, 2021 and 2020 (in millions):
| Three Months Ended March 31,
| 2021 |  | 2020
Interest (1) | $ | 49 |  |  | $ | 47 |
Income Taxes, Net of Refunds Received | $ | 20 |  |  | $ | 15 |
(1)Net of capitalized interest of $8 million and $9 million for the three months ended March 31, 2021 and 2020, respectively.

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