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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract] |
Schedule of Cash Flows Related to Income Taxes, Interest, Leases, and Capital and Turnaround Expenditures Included in Accounts Payable | Cash flows related to income taxes, interest, leases, and capital and turnaround expenditures included in accounts payable were as follows:
| Year Ended December 31,
(in millions) | 2024 |  | 2023 |  | 2022
Supplemental disclosures: |  |  |  |  |
Cash paid for income taxes, net of refunds | $ | 60 |  |  | $ | 93 |  |  | $ | 170 |
Cash paid for interest | 112 |  |  | 95 |  |  | 96 |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |
Operating cash flows from operating leases | 19 |  |  | 19 |  |  | 17
Operating cash flows from finance leases | 4 |  |  | 4 |  |  | 5
Financing cash flows from finance leases | 10 |  |  | 6 |  |  | 6
Noncash investing and financing activities: |  |  |  |  |
Change in capital expenditures included in accounts payable (1) | 2 |  |  | (8) |  |  | 12 |
Change in turnaround expenditures included in accounts payable | 5 |  |  | 3 |  |  | (2) |
ROU assets obtained in exchange for new or modified operating lease liabilities | 37 |  |  | 21 |  |  | 7 |
ROU assets obtained in exchange for new or modified finance lease liabilities | 26 |  |  | 2 |  |  | — |
(1)Capital expenditures are shown exclusive of capitalized turnaround expenditures.
Schedule of Cash and Cash Equivalents | Cash, cash equivalents and restricted cash consisted of the following:
| As of December 31,
(in millions) | 2024 |  | 2023
Cash and cash equivalents | $ | 987 |  |  | $ | 581 |
Reserved funds (1) | — |  |  | 598 |
Restricted cash (2) | — |  |  | 7 |
Cash, cash equivalents, reserved funds and restricted cash | $ | 987 |  |  | $ | 1,186 |
(1)Funds reserved for the redemption of the 2025 Notes in February 2024. See Note 8 (“Long-Term Debt and Finance Lease Obligations”) for further discussion. (2)Restricted funds were released and paid in February 2024.
Schedule of Restricted Cash | Cash, cash equivalents and restricted cash consisted of the following:
| As of December 31,
(in millions) | 2024 |  | 2023
Cash and cash equivalents | $ | 987 |  |  | $ | 581 |
Reserved funds (1) | — |  |  | 598 |
Restricted cash (2) | — |  |  | 7 |
Cash, cash equivalents, reserved funds and restricted cash | $ | 987 |  |  | $ | 1,186 |
(1)Funds reserved for the redemption of the 2025 Notes in February 2024. See Note 8 (“Long-Term Debt and Finance Lease Obligations”) for further discussion. (2)Restricted funds were released and paid in February 2024.

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