FAIR VALUE MEASUREMENTS - Schedule of Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets
Available-for-sale investments:	$ 1,021.3	$ 898.7
Bank time deposits
Assets
Available-for-sale investments:	13.9	0.0
Corporate debt securities
Assets
Available-for-sale investments:	462.3	641.8
Asset-backed securities
Assets
Available-for-sale investments:	68.8	184.3
United States government and agency securities
Assets
Available-for-sale investments:	237.1	70.0
Commercial paper
Assets
Available-for-sale investments:	236.5	0.0
Municipal securities
Assets
Available-for-sale investments:	2.7	2.6
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis
Assets
Cash equivalents	2,379.9	579.2
Investments held for deferred compensation plans	146.6	125.8
Derivatives	82.1	39.5
Total assets	3,635.4	1,643.2
Liabilities
Derivatives	8.2	15.2
Contingent consideration liabilities	16.5
Other	5.0	10.3
Total liabilities	29.7	25.5
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Bank time deposits
Assets
Available-for-sale investments:	13.9
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Corporate debt securities
Assets
Available-for-sale investments:	462.3	641.8
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Asset-backed securities
Assets
Available-for-sale investments:	68.8	184.3
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | United States government and agency securities
Assets
Available-for-sale investments:	237.1	70.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Commercial paper
Assets
Available-for-sale investments:	236.5
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Municipal securities
Assets
Available-for-sale investments:	2.7	2.6
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Equity investments in unconsolidated entities
Assets
Available-for-sale investments:	5.5
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1
Assets
Cash equivalents	1,394.4	579.2
Investments held for deferred compensation plans	146.6	125.8
Derivatives	0.0	0.0
Total assets	1,546.5	705.0
Liabilities
Derivatives	0.0	0.0
Contingent consideration liabilities	0.0
Other	0.0	0.0
Total liabilities	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | Bank time deposits
Assets
Available-for-sale investments:	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | Corporate debt securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | Asset-backed securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | United States government and agency securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | Commercial paper
Assets
Available-for-sale investments:	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | Municipal securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 1 | Equity investments in unconsolidated entities
Assets
Available-for-sale investments:	5.5
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2
Assets
Cash equivalents	985.5	0.0
Investments held for deferred compensation plans	0.0	0.0
Derivatives	82.1	39.5
Total assets	2,088.9	938.2
Liabilities
Derivatives	8.2	15.2
Contingent consideration liabilities	0.0
Other	0.0	0.0
Total liabilities	8.2	15.2
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | Bank time deposits
Assets
Available-for-sale investments:	13.9
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | Corporate debt securities
Assets
Available-for-sale investments:	462.3	641.8
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | Asset-backed securities
Assets
Available-for-sale investments:	68.8	184.3
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | United States government and agency securities
Assets
Available-for-sale investments:	237.1	70.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | Commercial paper
Assets
Available-for-sale investments:	236.5
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | Municipal securities
Assets
Available-for-sale investments:	2.7	2.6
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 2 | Equity investments in unconsolidated entities
Assets
Available-for-sale investments:	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3
Assets
Cash equivalents	0.0	0.0
Investments held for deferred compensation plans	0.0	0.0
Derivatives	0.0	0.0
Total assets	0.0	0.0
Liabilities
Derivatives	0.0	0.0
Contingent consideration liabilities	16.5
Other	5.0	10.3
Total liabilities	21.5	10.3
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | Bank time deposits
Assets
Available-for-sale investments:	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | Corporate debt securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | Asset-backed securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | United States government and agency securities
Assets
Available-for-sale investments:	0.0	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | Commercial paper
Assets
Available-for-sale investments:	0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | Municipal securities
Assets
Available-for-sale investments:	0.0	$ 0.0
Estimate of Fair Value Measurement | Fair Value on a Recurring Basis | Level 3 | Equity investments in unconsolidated entities
Assets
Available-for-sale investments:	$ 0.0