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DERIVATIVES AND HEDGING TRANSACTIONS - Information by Type of Derivative and Hedging Activities (Details) € in Millions, ¥ in Millions, $ in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
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Jul. 31, 2025 USD ($) | Jul. 31, 2025 EUR (€) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Sep. 30, 2025 CAD ($) | Sep. 30, 2025 EUR (€) | Sep. 30, 2025 CNY (¥) | Jun. 30, 2025 EUR (€) | Apr. 30, 2025 EUR (€) | Feb. 28, 2025 CAD ($) | Feb. 28, 2025 EUR (€)
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  | $ (1.6) |  |  |  |  |  |  |  |  |  |  |
Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum period for hedged transactions |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liability |  |  | 271.5 |  | $ 271.5 |  | $ 124.0 |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  | 674.2 | $ 630.4 |  |  |  |  |  |  |  |
Hedge settlements |  |  |  |  |  | 0.6 |  |  |  |  |  |  |  |
Revaluation (loss) gain, net of tax |  |  | 27.0 | $ (41.1) | (213.5) | (28.9) |  |  |  |  |  |  |  |
Seven year 2008 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | 1,500.0 |  | 1,500.0 |  |  |  |  |  |  |  |  |
Ten Year 2015 senior euro notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | 575.0 |  | 575.0 |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt | $ 674.0 | € 575 |  |  |  |  |  |  |  |  |  |  |  |
Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  | 0.3 | 2.5 | 5.0 | 3.7 |  |  |  |  |  |  |  |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  | (1.1) | 3.4 | (1.1) | 0.4 |  |  |  |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  | (0.4) | (0.5) | (1.3) | (1.4) |  |  |  |  |  |  |  |
Special (gains) and charges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  |  |  | (1.6) |  |  |  |  |  |  |  |  |
Foreign currency forward contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | 2,143.0 |  | 2,143.0 |  | 3,175.0 |  |  |  |  |  |  |
Foreign currency forward contracts | Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  | $ (0.8) | $ 1.7 | $ (2.2) | $ (3.3) |  |  |  |  |  |  |  |
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  | Selling, General and Administrative Expense | Selling, General and Administrative Expense | Selling, General and Administrative Expense | Selling, General and Administrative Expense |  |  |  |  |  |  |  |
Interest rate swap agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | $ 1,500.0 |  | $ 1,500.0 |  | 1,500.0 |  |  |  |  |  |  |
Cross-currency swap derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | 4,234.0 |  | 4,234.0 |  | 2,745.0 | $ 280 | € 2,275 | ¥ 4,699 |  |  |  |
Cross-currency swap derivative contracts | Euro |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | 2,669.0 |  | 2,669.0 |  |  |  |  |  |  |  |  |
Cross-currency swap derivative contracts | CNY |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | 660.0 |  | 660.0 |  |  |  |  |  |  |  |  |
Cross-currency swap derivative contracts | CAD |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | 201.0 |  | 201.0 |  |  |  |  |  |  |  |  |
Foreign currency option contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | 1,580.0 |  | 1,580.0 |  |  |  |  |  |  |  |  |
Foreign currency option contracts | Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on derivative recognized in income |  |  | $ (1.6) |  | $ (1.6) |  | $ 0.0 |  |  |  |  |  |  |
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  | Other Nonrecurring (Income) Expense |  | Other Nonrecurring (Income) Expense |  | Other Nonrecurring (Income) Expense |  |  |  |  |  |  |
Foreign currency option contracts | Ovivo's Electronics | Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  | $ 1,600.0 |  | $ 1,600.0 |  |  | $ 2,200 |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 1.30% |  | 1.30% |  |  | 1.30% | 1.30% | 1.30% |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 4.80% |  | 4.80% |  |  | 4.80% | 4.80% | 4.80% |  |  |  |
Cash Flow Hedges. | Foreign currency forward contracts | Derivatives designated as hedging instruments | Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) reclassified from AOCI into income (effective portion) |  |  | $ 0.3 | $ 2.5 | $ 5.0 | $ 3.7 |  |  |  |  |  |  |  |
Cash Flow Hedges. | Foreign currency forward contracts | Derivatives designated as hedging instruments | Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) reclassified from AOCI into income (effective portion) |  |  | (0.3) | 1.7 | 1.1 | 3.7 |  |  |  |  |  |  |  |
Cash Flow Hedges. | Interest rate swap agreements | Derivatives designated as hedging instruments | Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact on AOCI and earnings from derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of (loss) gain reclassified from AOCI to income |  |  | (0.4) | (0.5) | (1.3) | (1.4) |  |  |  |  |  |  |  |
Fair Value Hedges | Interest rate swap agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liability |  |  | 1,414.9 |  | 1,414.9 |  | $ 1,361.1 |  |  |  |  |  |  |
Cumulative amount of fair value hedging adjustment |  |  | (87.5) |  | (87.5) |  | $ (141.3) |  |  |  |  |  |  |
Net Investment Hedge |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revaluation (loss) gain, net of tax |  |  | 27.0 | (41.1) | (213.5) | (28.9) |  |  |  |  |  |  |  |
Net Investment Hedge | Ten Year 2015 senior euro notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net investment hedge elected to de-designate | € |  |  |  |  |  |  |  |  |  |  | € 236 | € 300 |  |
Net Investment Hedge | Euro Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revaluation (loss) gain, net of tax |  |  | 0.6 | (8.9) | (33.5) | (8.4) |  |  |  |  |  |  |  |
Net Investment Hedge | Euro Notes | Ten Year 2015 senior euro notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedge settlements | € |  | € 39 |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedge | Cross-currency swap derivative contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revaluation (loss) gain, net of tax |  |  | $ 26.4 | $ (32.2) | $ (180.0) | $ (20.5) |  |  |  |  |  |  |  |
Net Investment Hedge | Cross-currency swap derivative contracts | Euro |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 400
Net Investment Hedge | Cross-currency swap derivative contracts | CAD |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional values |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,080 |

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