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INCENTIVE PLANS (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of authorized shares remaining	5,441,616
Officers And Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense provision under cash-based compensation plans	$ 42.8	$ 42.2	$ 42.1
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 23.2	$ 18.2	$ 17.8
Weighted-average Grant Date Fair Value, Granted	$ 185.31	$ 164.38	$ 133.95
Share-based compensation plans vesting period (in years)	3 years
SOSARs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 4.0	$ 3.9	$ 3.9
Share-based compensation plans vesting period (in years)	3 years
Share-based compensation plans expiration period (in years)	10 years
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 11.6	$ 10.4	$ 9.8
Weighted-average Grant Date Fair Value, Granted	$ 184.49	$ 164.38	$ 133.95
Share-based compensation plans vesting period (in years)	3 years
Deferred Stock Units [Member] \| Share-Based Payment Arrangement, Nonemployee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 2.4	$ 2.2	$ 1.6
Minimum [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units paid target range	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares that may be issued	8,000,000
Maximum [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units paid target range	200.00%