| Finance Lease, Right-of-Use Asset, before Accumulated Amortization | 397.80M | as of 2025-12-31 |
| Current Federal Tax Expense (Benefit) | 103.00M | 2025-01-01 → 2025-12-31 |
| Current State and Local Tax Expense (Benefit) | 26.90M | 2025-01-01 → 2025-12-31 |
| Current Foreign Tax Expense (Benefit) | 171.50M | 2025-01-01 → 2025-12-31 |
| Current Income Tax Expense (Benefit) | 301.40M | 2025-01-01 → 2025-12-31 |
| Deferred Federal Income Tax Expense (Benefit) | -19.00M | 2025-01-01 → 2025-12-31 |
| Deferred State and Local Income Tax Expense (Benefit) | -10.90M | 2025-01-01 → 2025-12-31 |
| Deferred Foreign Income Tax Expense (Benefit) | -29.30M | 2025-01-01 → 2025-12-31 |
| Operating Lease, Liability, Current | 430.40M | as of 2025-12-31 |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 5.20M | 2025-01-01 → 2025-12-31 |
| Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization | 2.40B | as of 2025-12-31 |
| Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization | 1.39B | as of 2025-12-31 |
| Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization | 1.01B | as of 2025-12-31 |
| Federal Income Tax Expense (Benefit), Continuing Operations | 84.00M | 2025-01-01 → 2025-12-31 |
| State and Local Income Tax Expense (Benefit), Continuing Operations | 16.00M | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Expense | 100.80M | 2025-01-01 → 2025-12-31 |
| Foreign Income Tax Expense (Benefit), Continuing Operations | 142.20M | 2025-01-01 → 2025-12-31 |
| Equity Method Investment, Underlying Equity in Net Assets | 53.30M | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 58.40M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 7.00M | 2025-01-01 → 2025-12-31 |
| EffectiveIncomeTaxRateReconciliationGiltiAmount | 2.80M | 2025-01-01 → 2025-12-31 |
| EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmount | -200.00K | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | 304.30M | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Amount | 6.50M | 2025-01-01 → 2025-12-31 |
| Disposal Group, Including Discontinued Operation, Accounts Payable, Current | 669.70M | as of 2025-12-31 |
| Disposal Group, Including Discontinued Operation, Deferred Revenue, Current | 377.50M | as of 2025-12-31 |
| Disposal Group, Including Discontinued Operation, Other Liabilities, Current | 213.80M | as of 2025-12-31 |
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Net | -38.60M | 2025-01-01 → 2025-12-31 |
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net | -93.10M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Contingency, Amount | 2.30M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | 0 | 2025-01-01 → 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year One | 383.10M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Two | 382.60M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Three | 378.60M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Four | 371.60M | as of 2025-12-31 |
| Redeemable Noncontrolling Interest, Equity, Fair Value | 363.20M | as of 2025-12-31 |
| Revenue, Remaining Performance Obligation, Amount | 497.90M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Five | 358.80M | as of 2025-12-31 |
| Goodwill, Acquired During Period | 7.70B | 2025-01-01 → 2025-12-31 |
| Goodwill, Written off Related to Sale of Business Unit | 66.20M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Tax Credit Carryforwards | 292.50M | as of 2025-12-31 |
| Goodwill, Foreign Currency Translation Gain (Loss) | 326.30M | 2025-01-01 → 2025-12-31 |
| Operating Lease, Cost | 239.30M | 2025-01-01 → 2025-12-31 |
| Goodwill, Impaired, Accumulated Impairment Loss | 0 | as of 2025-12-31 |
| Short-term Lease, Cost | 3.90M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits | 237.60M | as of 2025-12-31 |
| Variable Lease, Cost | 23.00M | 2025-01-01 → 2025-12-31 |
| Lease, Cost | 325.60M | 2025-01-01 → 2025-12-31 |
| Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | 35.20M | 2025-01-01 → 2025-12-31 |
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 1.28B | 2025-01-01 → 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year One | 46.20M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Two | 31.50M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Three | 18.60M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Four | 8.10M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Five | 1.70M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, after Year Five | 700.00K | as of 2025-12-31 |
| Finance Lease, Liability, Payment, Due | 106.80M | as of 2025-12-31 |
| Finance Lease, Liability, Undiscounted Excess Amount | 2.30M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year One | 528.60M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Two | 446.20M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Three | 354.90M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Four | 277.50M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Five | 193.50M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, after Year Five | 659.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid | 2.46B | as of 2025-12-31 |
| Deferred Tax Assets, Other | 35.90M | as of 2025-12-31 |
| Deferred Tax Assets, Gross | 1.19B | as of 2025-12-31 |
| Deferred Tax Assets, Valuation Allowance | 281.90M | as of 2025-12-31 |
| Deferred Tax Assets, Net of Valuation Allowance | 906.40M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 412.30M | as of 2025-12-31 |
| Deferred Tax Liabilities, Gross | 2.06B | as of 2025-12-31 |
| Long-term Debt, Gross | 9.27B | as of 2025-12-31 |
| Deferred Tax Liabilities, Investment in Noncontrolled Affiliates | 37.70M | as of 2025-12-31 |
| Deferred Tax Liabilities, Undistributed Foreign Earnings | 148.60M | as of 2025-12-31 |
| Deferred Tax Liabilities, Leasing Arrangements | 2.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Goodwill and Intangible Assets | 1.87B | as of 2025-12-31 |
| Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Liability | 6.40M | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year One | 1.40B | as of 2025-12-31 |
| Defined Contribution Plan, Cost | 110.40M | 2025-01-01 → 2025-12-31 |
| Long-Term Debt, Maturity, Year Two | 588.70M | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Three | 500.00M | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Four | 0 | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Five | 1.85B | as of 2025-12-31 |
| Long-Term Debt, Maturity, after Year Five | 4.93B | as of 2025-12-31 |
| Debt Instrument, Unamortized Discount (Premium), Net | 192.30M | as of 2025-12-31 |
| Unrecognized Tax Benefits | 444.10M | as of 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 11.10M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | 47.40M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 4.40M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | 800.00K | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Acquisition | 294.60M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation | 700.00K | 2025-01-01 → 2025-12-31 |
| Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge | 200.00K | as of 2025-12-31 |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 426.90M | as of 2025-12-31 |
| Unbilled Contracts Receivable | 1.21B | as of 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Domestic | 319.00M | 2025-01-01 → 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Foreign | -40.80M | 2025-01-01 → 2025-12-31 |