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DEBT AND INTEREST - Other Debt Information (Details) € in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2024 USD ($) | Jan. 31, 2024 EUR (€) | Nov. 30, 2022 USD ($) | Dec. 31, 2023 USD ($) | Sep. 30, 2023 USD ($) | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2023 EUR (€)
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 8,180.0 |  |  |  | $ 8,576.7 |  |  |  | $ 8,180.0 | $ 8,576.7 |  |
Long-term debt, current maturities |  |  |  | (628.6) |  |  |  | (501.4) |  |  |  | (628.6) | (501.4) |  |
Long-term debt |  |  |  | 7,551.4 |  |  |  | 8,075.3 |  |  |  | 7,551.4 | 8,075.3 |  |
Repayments of long-term debt |  |  |  |  |  |  |  |  |  |  |  | 500.0 |  | $ 1,017.9 |
Aggregate annual maturities of long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  | 629.0 |  |  |  |  |  |  |  | 629.0 |  |  |
2025 |  |  |  | 634.0 |  |  |  |  |  |  |  | 634.0 |  |  |
2026 |  |  |  | 729.0 |  |  |  |  |  |  |  | 729.0 |  |  |
2027 |  |  |  | 946.0 |  |  |  |  |  |  |  | 946.0 |  |  |
2028 |  |  |  | 495.0 |  |  |  |  |  |  |  | 495.0 |  |  |
Interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  |  | 348.9 | 252.1 | 230.6 |
Interest income |  |  |  |  |  |  |  |  |  |  |  | (52.2) | (8.5) | (12.3) |
Interest expense, net |  |  |  | 70.4 | $ 74.3 | $ 77.8 | $ 74.2 | 69.5 | $ 65.1 | $ 56.0 | $ 53.0 | $ 296.7 | 243.6 | 218.3 |
Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt | $ 630.0 | € 575 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt refinancing charges, pre-tax |  |  |  |  |  |  |  |  |  |  |  |  |  | 32.3 |
Debt refinancing charges, net of tax |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 28.4 |
Public Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal outstanding payable at time of prepayment of notes (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 101.00% |  |  |
Two Year 2021 Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  |  |  |  |  | $ 498.7 |  |  |  |  | $ 498.7 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  |  |  |  |  | 0.90% |  |  |  |  | 0.90% |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  | 1.19% |  |  |  |  | 1.19% |  |
Aggregate principal amount |  |  |  | 500.0 |  |  |  |  |  |  |  | $ 500.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |
Five Year 2022 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 494.2 |  |  |  | $ 492.7 |  |  |  | $ 494.2 | $ 492.7 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 5.25% |  |  |  | 5.25% |  |  |  | 5.25% | 5.25% |  | 5.25%
Effective interest rate (as a percent) |  |  |  | 5.60% |  |  |  | 5.36% |  |  |  | 5.60% | 5.36% |  | 5.60%
Aggregate principal amount |  |  |  | $ 500.0 |  |  |  |  |  |  |  | $ 500.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Six Year 2021 Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 497.4 |  |  |  | $ 496.5 |  |  |  | $ 497.4 | $ 496.5 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 1.65% |  |  |  | 1.65% |  |  |  | 1.65% | 1.65% |  | 1.65%
Effective interest rate (as a percent) |  |  |  | 1.83% |  |  |  | 1.83% |  |  |  | 1.83% | 1.83% |  | 1.83%
Aggregate principal amount |  |  |  | $ 500.0 |  |  |  |  |  |  |  | $ 500.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 6 years |  |  |
Ten year 2017 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 448.3 |  |  |  | $ 433.9 |  |  |  | $ 448.3 | $ 433.9 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 3.25% |  |  |  | 3.25% |  |  |  | 3.25% | 3.25% |  | 3.25%
Effective interest rate (as a percent) |  |  |  | 8.43% |  |  |  | 4.77% |  |  |  | 8.43% | 4.77% |  | 8.43%
Aggregate principal amount |  |  |  | $ 500.0 |  |  |  |  |  |  |  | $ 500.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Ten year 2020 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 662.7 |  |  |  | $ 653.5 |  |  |  | $ 662.7 | $ 653.5 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 4.80% |  |  |  | 4.80% |  |  |  | 4.80% | 4.80% |  | 4.80%
Effective interest rate (as a percent) |  |  |  | 6.19% |  |  |  | 3.72% |  |  |  | 6.19% | 3.72% |  | 6.19%
Aggregate principal amount |  |  |  | $ 698.0 |  |  |  |  |  |  |  | $ 698.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Ten year 2020 senior notes, maturing in 2031 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 561.0 |  |  |  | $ 555.2 |  |  |  | $ 561.0 | $ 555.2 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 1.30% |  |  |  | 1.30% |  |  |  | 1.30% | 1.30% |  | 1.30%
Effective interest rate (as a percent) |  |  |  | 3.21% |  |  |  | 1.70% |  |  |  | 3.21% | 1.70% |  | 3.21%
Aggregate principal amount |  |  |  | $ 600.0 |  |  |  |  |  |  |  | $ 600.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Eleven Year 2021 Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 645.2 |  |  |  | $ 644.6 |  |  |  | $ 645.2 | $ 644.6 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 2.13% |  |  |  | 2.13% |  |  |  | 2.13% | 2.13% |  | 2.13%
Effective interest rate (as a percent) |  |  |  | 2.06% |  |  |  | 2.24% |  |  |  | 2.06% | 2.24% |  | 2.06%
Aggregate principal amount |  |  |  | $ 650.0 |  |  |  |  |  |  |  | $ 650.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 11 years |  |  |
Thirty year 2011 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 384.7 |  |  |  | $ 384.5 |  |  |  | $ 384.7 | $ 384.5 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 5.50% |  |  |  | 5.50% |  |  |  | 5.50% | 5.50% |  | 5.50%
Effective interest rate (as a percent) |  |  |  | 5.62% |  |  |  | 5.62% |  |  |  | 5.62% | 5.62% |  | 5.62%
Aggregate principal amount |  |  |  | $ 389.0 |  |  |  |  |  |  |  | $ 389.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 30 years |  |  |
Thirty year 2017 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 426.8 |  |  |  | $ 425.5 |  |  |  | $ 426.8 | $ 425.5 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 3.95% |  |  |  | 3.95% |  |  |  | 3.95% | 3.95% |  | 3.95%
Effective interest rate (as a percent) |  |  |  | 4.79% |  |  |  | 4.79% |  |  |  | 4.79% | 4.79% |  | 4.79%
Aggregate principal amount |  |  |  | $ 484.0 |  |  |  |  |  |  |  | $ 484.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 30 years |  |  |
Thirty year 2020 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 491.1 |  |  |  | $ 490.7 |  |  |  | $ 491.1 | $ 490.7 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 2.13% |  |  |  | 2.13% |  |  |  | 2.13% | 2.13% |  | 2.13%
Effective interest rate (as a percent) |  |  |  | 2.23% |  |  |  | 2.23% |  |  |  | 2.23% | 2.23% |  | 2.23%
Aggregate principal amount |  |  |  | $ 500.0 |  |  |  |  |  |  |  | $ 500.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 30 years |  |  |
Thirty Year 2021 Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 839.3 |  |  |  | $ 838.9 |  |  |  | $ 839.3 | $ 838.9 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 2.70% |  |  |  | 2.70% |  |  |  | 2.70% | 2.70% |  | 2.70%
Effective interest rate (as a percent) |  |  |  | 2.78% |  |  |  | 2.78% |  |  |  | 2.78% | 2.78% |  | 2.78%
Aggregate principal amount |  |  |  | $ 850.0 |  |  |  |  |  |  |  | $ 850.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 30 years |  |  |
Thirty-four year 2021 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 539.2 |  |  |  | $ 537.2 |  |  |  | $ 539.2 | $ 537.2 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 2.75% |  |  |  | 2.75% |  |  |  | 2.75% | 2.75% |  | 2.75%
Effective interest rate (as a percent) |  |  |  | 3.86% |  |  |  | 3.86% |  |  |  | 3.86% | 3.86% |  | 3.86%
Aggregate principal amount |  |  |  | $ 685.0 |  |  |  |  |  |  |  | $ 685.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 34 years |  |  |
Seven year 2016 senior euro notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 625.9 |  |  |  | $ 596.9 |  |  |  | $ 625.9 | $ 596.9 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 1.00% |  |  |  | 1.00% |  |  |  | 1.00% | 1.00% |  | 1.00%
Effective interest rate (as a percent) |  |  |  | 1.19% |  |  |  | 1.03% |  |  |  | 1.19% | 1.03% |  | 1.19%
Aggregate principal amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 575
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 7 years |  |  |
Ten year 2016 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 728.2 |  |  |  | $ 721.1 |  |  |  | $ 728.2 | $ 721.1 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 2.70% |  |  |  | 2.70% |  |  |  | 2.70% | 2.70% |  | 2.70%
Effective interest rate (as a percent) |  |  |  | 4.07% |  |  |  | 3.21% |  |  |  | 4.07% | 3.21% |  | 4.07%
Aggregate principal amount |  |  |  | $ 750.0 |  |  |  |  |  |  |  | $ 750.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Thirty year 2016 senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 197.4 |  |  |  | $ 197.3 |  |  |  | $ 197.4 | $ 197.3 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 3.70% |  |  |  | 3.70% |  |  |  | 3.70% | 3.70% |  | 3.70%
Effective interest rate (as a percent) |  |  |  | 3.80% |  |  |  | 3.81% |  |  |  | 3.80% | 3.81% |  | 3.80%
Aggregate principal amount |  |  |  | $ 200.0 |  |  |  |  |  |  |  | $ 200.0 |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 30 years |  |  |
Ten Year 2015 senior euro notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 625.1 |  |  |  | $ 596.7 |  |  |  | $ 625.1 | $ 596.7 |  |
AVERAGE INTEREST RATE (as a percent) |  |  |  | 2.63% |  |  |  | 2.63% |  |  |  | 2.63% | 2.63% |  | 2.63%
Effective interest rate (as a percent) |  |  |  | 2.88% |  |  |  | 2.81% |  |  |  | 2.88% | 2.81% |  | 2.88%
Aggregate principal amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 575
Debt instrument, term |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
New 5-Year Note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | $ 500.0 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.25% |  |  |  |  |  |  |  |  |  |  |  |
Other debt. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  | $ 13.5 |  |  |  | $ 12.8 |  |  |  | $ 13.5 | $ 12.8 |  |

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