SEGMENT INFORMATION - Schedule of Information about Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Net Sales
Total segment net sales	$ 1,553.1	$ 1,354.4	$ 4,498.0	$ 4,053.7
Cost of Sales
Total segment cost of sales	345.2	262.9	991.2	825.3
Selling, general, and administrative expenses
Total segment selling, general, and administrative expenses	514.6	421.4	1,482.3	1,297.3
Operating segments
Segment Net Sales
Total segment net sales	1,553.1	1,354.4	4,498.0	4,053.7
Cost of Sales
Total segment cost of sales	303.6	252.0	893.7	789.2
Selling, general, and administrative expenses
Total segment selling, general, and administrative expenses	277.6	252.0	819.4	760.9
Other Segment Items
Total other segment items	24.0	0.3	10.2	(0.4)
Segment Operating Income
Total segment operating income	947.9	850.1	2,774.7	2,504.0
Operating segments | United States
Segment Net Sales
Total segment net sales	907.5	804.6	2,636.1	2,393.1
Cost of Sales
Total segment cost of sales	167.1	126.6	480.6	412.7
Selling, general, and administrative expenses
Total segment selling, general, and administrative expenses	140.2	126.2	409.1	359.2
Other Segment Items
Total other segment items	0.7	0.6	1.9	2.0
Segment Operating Income
Total segment operating income	599.5	551.2	1,744.5	1,619.2
Operating segments | Europe
Segment Net Sales
Total segment net sales	387.9	319.8	1,107.9	978.0
Cost of Sales
Total segment cost of sales	82.4	72.7	249.4	220.7
Selling, general, and administrative expenses
Total segment selling, general, and administrative expenses	70.0	65.0	217.6	207.3
Other Segment Items
Total other segment items	28.9	4.8	35.8	9.7
Segment Operating Income
Total segment operating income	206.6	177.3	605.1	540.3
Operating segments | Japan
Segment Net Sales
Total segment net sales	90.1	81.4	267.2	253.9
Cost of Sales
Total segment cost of sales	13.3	11.7	39.2	36.1
Selling, general, and administrative expenses
Total segment selling, general, and administrative expenses	17.9	17.7	52.8	63.3
Other Segment Items
Total other segment items	(0.9)	(2.4)	(5.7)	(5.3)
Segment Operating Income
Total segment operating income	59.8	54.4	180.9	159.8
Operating segments | Rest of World
Segment Net Sales
Total segment net sales	167.6	148.6	486.8	428.7
Cost of Sales
Total segment cost of sales	40.8	41.0	124.5	119.7
Selling, general, and administrative expenses
Total segment selling, general, and administrative expenses	49.5	43.1	139.9	131.1
Other Segment Items
Total other segment items	(4.7)	(2.7)	(21.8)	(6.8)
Segment Operating Income
Total segment operating income	$ 82.0	$ 67.2	$ 244.2	$ 184.7