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INCENTIVE PLANS - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of authorized shares remaining (in shares)	4,396,033
Officers and Key Employees
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expense provision under cash-based compensation plans	$ 58.8	$ 77.3	$ 42.8
Performance shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation plans vesting period (in years)	3 years
Pretax compensation expense	$ 30.4	$ 40.1	$ 23.2
Granted, Weighted average grant date fair value (in usd per share)	$ 247.00	$ 175.46	$ 185.31
Restricted shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation plans vesting period (in years)	3 years
Pretax compensation expense	$ 15.1	$ 16.5	$ 11.6
Granted, Weighted average grant date fair value (in usd per share)	$ 247.00	$ 175.46	$ 184.49
SOSARs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation plans vesting period (in years)	3 years
Pretax compensation expense	$ 5.1	$ 4.0	$ 4.0
Share-based compensation plans expiration period (in years)	10 years
Deferred Stock Units \| Share-Based Payment Arrangement, Nonemployee
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Pretax compensation expense	$ 2.8	$ 2.6	$ 2.4
Minimum \| Performance shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Units paid target range	0.00%
Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares that may be issued (in shares)	8,000,000
Maximum \| Performance shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Units paid target range	200.00%