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Supplemental Oil and Gas Information (Unaudited) - Schedule of Capitalized Costs Relating to Oil and Gas Producing Activities (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Oil and Gas, Capitalized Cost [Line Items] |  |
Unproved oil and natural gas properties | $ 283.0 | $ 400.1
Proved oil and natural gas properties | 21,343.6 | 20,738.1
Gross capitalized costs | 21,626.6 | 21,138.2
Accumulated depreciation, depletion and amortization |  |
Unproved oil and natural gas properties | (131.7) | (122.7)
Proved oil and natural gas properties | (13,486.6) | (12,829.4)
Net capitalized costs | 8,008.3 | 8,186.1
United States - Offshore |  |
Oil and Gas, Capitalized Cost [Line Items] |  |
Unproved oil and natural gas properties | 247.3 | 337.3
Proved oil and natural gas properties | 16,598.8 | 15,868.4
Gross capitalized costs | 16,846.1 | 16,205.7
Accumulated depreciation, depletion and amortization |  |
Unproved oil and natural gas properties | (111.0) | (105.3)
Proved oil and natural gas properties | (10,326.2) | (9,552.9)
Net capitalized costs | 6,408.9 | 6,547.5
Canada |  |
Oil and Gas, Capitalized Cost [Line Items] |  |
Unproved oil and natural gas properties | 6.6 | 13.1
Proved oil and natural gas properties | 4,498.1 | 4,716.0
Gross capitalized costs | 4,504.7 | 4,729.1
Accumulated depreciation, depletion and amortization |  |
Unproved oil and natural gas properties | 0.0 | 0.0
Proved oil and natural gas properties | (3,116.2) | (3,233.7)
Net capitalized costs | 1,388.5 | 1,495.4
Other |  |
Oil and Gas, Capitalized Cost [Line Items] |  |
Unproved oil and natural gas properties | 29.1 | 49.7
Proved oil and natural gas properties | 246.7 | 153.7
Gross capitalized costs | 275.8 | 203.4
Accumulated depreciation, depletion and amortization |  |
Unproved oil and natural gas properties | (20.7) | (17.4)
Proved oil and natural gas properties | (44.2) | (42.8)
Net capitalized costs | $ 210.9 | $ 143.2

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