FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Carrying Amount | Publicly traded debt
Liabilities:
Long-term debt	$ 9,587.9	$ 8,849.6
Carrying Amount | Non-publicly traded debt
Liabilities:
Long-term debt	1.6	1.9
Fair Value | Publicly traded debt
Liabilities:
Long-term debt	8,195.3	9,777.4
Fair Value | Non-publicly traded debt
Liabilities:
Long-term debt	1.5	1.9
Fair Value Measurements on a Recurring Basis | Fair Value
Assets:
Net investment hedge asset	56.4
Total assets, fair value	155.1	179.2
Liabilities:
Total liabilities, fair value	3.1	36.5
Fair Value Measurements on a Recurring Basis | Fair Value | Deferred compensation plan assets
Assets:
Plan assets	70.3	80.4
Fair Value Measurements on a Recurring Basis | Fair Value | Qualified Replacement Plan assets
Assets:
Plan assets	28.4	98.8
Fair Value Measurements on a Recurring Basis | Fair Value | Foreign currency forward contracts
Liabilities:
Net investment hedge liability	3.1	0.0
Fair Value Measurements on a Recurring Basis | Fair Value | Net Investment Hedge Liability
Liabilities:
Net investment hedge liability	0.0	36.5
Fair Value Measurements on a Recurring Basis | Level 1
Assets:
Total assets, fair value	69.8	141.9
Liabilities:
Total liabilities, fair value	0.0	0.0
Fair Value Measurements on a Recurring Basis | Level 1 | Deferred compensation plan assets
Assets:
Plan assets	41.4	43.1
Fair Value Measurements on a Recurring Basis | Level 1 | Qualified Replacement Plan assets
Assets:
Plan assets	28.4	98.8
Fair Value Measurements on a Recurring Basis | Level 2
Assets:
Net investment hedge asset	56.4
Total assets, fair value	85.3	37.3
Liabilities:
Total liabilities, fair value	3.1	36.5
Fair Value Measurements on a Recurring Basis | Level 2 | Deferred compensation plan assets
Assets:
Plan assets	28.9	37.3
Liabilities:
Cost basis of investment funds	65.2	63.0
Fair Value Measurements on a Recurring Basis | Level 2 | Qualified Replacement Plan assets
Liabilities:
Cost basis of investment funds	31.4	86.9
Fair Value Measurements on a Recurring Basis | Level 2 | Foreign currency forward contracts
Liabilities:
Net investment hedge liability	3.1	0.0
Fair Value Measurements on a Recurring Basis | Level 2 | Net Investment Hedge Liability
Liabilities:
Net investment hedge liability		36.5
Fair Value Measurements on a Recurring Basis | Level 3
Assets:
Total assets, fair value	0.0	0.0
Liabilities:
Total liabilities, fair value	$ 0.0