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Income Taxes (Details 4) $ in Millions, $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 CAD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Less: Net earnings attributable to noncontrolling interest |  |  |  |  | $ 259.0 | $ 313.0 | $ 591.0
Liability (refund) adjustment from settlement with taxing authority |  |  |  |  | (39.0) |  |
Transfer pricing arbitration |  |  |  |  | 0.0 | 0.0 | 69.0
State income taxes, net of federal |  |  |  |  | 8.0 | 44.0 | 143.0
Income tax expense (benefit) |  |  |  |  | (285.0) | (410.0) | (1,158.0)
Undistributed earnings |  |  |  |  | 14.0 | 9.0 |
State tax credits |  |  |  |  | 11.0 | 16.0 |
Unrecognized tax benefits increase in period |  |  |  |  | 8.0 |  |
Additions for tax positions taken during prior years |  |  |  |  | 7.0 | 69.0 |
Unrecognized tax benefits |  | $ 181.0 |  | $ 181.0 | 230.0 | 222.0 | 181.0
Unrecognized tax benefits that would impact effective tax rate |  |  |  |  | 49.0 |  |
Additions for tax positions taken during the current year |  |  |  |  | 1.0 | 5.0 |
Reductions related to settlements with tax jurisdictions |  |  |  |  | 0.0 | 33.0 |
Interest expense and penalties related to potential income taxes |  |  |  |  | 8.0 | (4.0) | 66.0
Deferred Tax Assets, Valuation Allowance |  |  |  |  | 107.0 | 194.0 |
Income Tax Examination, Interest Refund |  |  |  |  | 36.0 |  |
Income Tax Examination, Refund Adjustment from Settlement with Taxing Authority, Interest |  |  |  |  | 3.0 |  |
Interest expense and penalties |  |  |  |  |  |  |
Interest expense and penalties related to potential income taxes |  |  |  |  | 8.0 | (4.0) | 66.0
Accrued interest expense and penalties |  |  |  |  |  |  |
Amount recognized in consolidated balance sheets for accrued interest and penalties related to income taxes |  |  |  |  | 55.0 | 51.0 |
State Tax Authority |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Operating loss carryforwards |  |  |  |  | 56.0 |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |  |  |  |  | 15.0 |  |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration |  |  |  |  | 41.0 |  |
Foreign Tax Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Operating loss carryforwards |  |  |  |  | 49.0 |  |
Tax credit carryforward valuation allowance |  | 44.0 |  | 44.0 |  |  | 44.0
Unrecognized tax benefits increase in period |  |  |  |  |  |  | 26.0
Increase (decrease) in amount of valuation allowance |  |  |  |  |  | 11.0 |
Deferred Tax Assets, Valuation Allowance |  |  |  |  |  | 55.0 |
Foreign Tax Jurisdiction | United Kingdom |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Increase (decrease) in amount of valuation allowance |  |  |  |  | (11.0) | (7.0) |
Foreign Tax Jurisdiction | Canada | Capital Loss Carryforward |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Increase (decrease) in amount of valuation allowance |  |  |  |  | (83.0) |  |
Domestic Tax Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Income taxes receivable |  | 51.0 |  | 51.0 |  |  | 51.0
State and Local Jurisdiction and Foreign Tax Authority |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Decrease resulting from prior period tax positions |  |  |  |  |  | 33.0 |
Canada Revenue Agency | State Tax Authority | Tax Years 2006-2011 |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
State income taxes, net of federal |  |  |  |  |  |  | 9.0
Canada Revenue Agency | Foreign Tax Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Additions for tax positions taken during prior years |  |  |  |  |  | $ 74.0 | 154.0
Payments for other taxes |  | 267.0 | $ 363 |  |  |  |
Income Tax Examination, Interest Refund | $ 21.0 |  |  |  |  |  |
Income Tax Examination, Refund Adjustment from Settlement with Taxing Authority, Interest | $ 2.0 |  |  |  |  |  |
Canada Revenue Agency | Foreign Tax Jurisdiction | Tax Years 2006-2011 |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Liability (refund) adjustment from settlement with taxing authority |  | (129.0) |  | (129.0) |  |  | (129.0)
Foreign tax contingency |  |  |  |  |  |  | 78.0
Interest on income taxes accrued |  | 102.0 |  | 102.0 |  |  | 102.0
Income taxes paid |  |  |  | 224.0 |  |  |
His Majesty's Revenue and Customs (HMRC) | Foreign Tax Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Tax credit carryforward valuation allowance |  | $ 24.0 |  | $ 24.0 |  |  | $ 24.0
Alberta Tax and Revenue Administration | Foreign Tax Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Liability (refund) adjustment from settlement with taxing authority |  |  |  |  | (16.0) |  |
Income Tax Examination, Interest Refund |  |  |  |  | 15.0 |  |
Income Tax Examination, Refund Adjustment from Settlement with Taxing Authority, Interest |  |  |  |  | $ 1.0 |  |

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