Stockholders Equity and Noncontrolling Interests (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Increase (Decrease) In Equity
Balance at beginning of period	$ 9,847.4	$ 8,395.8
Redeemable noncontrolling interest, balance at beginning of period	8.7
Net income, excluding portion attributable to redeemable noncontrolling interest	743.9	551.6
Net income	744.2	552.0
Other comprehensive income (loss), excluding portion attributable to redeemable noncontrolling interests	72.6	(70.1)
Distributions to shareholders of noncontrolling interests		0.8
Purchase of treasury stock	(180.9)	(153.8)
Retirement of treasury stock	0.0	0.0
Stock option exercised	53.1	117.7
Dividends declared	(199.6)	(132.1)
Stock-based compensation expense	26.6	23.8
Balance at end of period	10,363.1	$ 8,733.7
Redeemable noncontrolling interest, balance at end of period	$ 9.3
Dividends [Abstract]
Dividends declared per share (in dollars per share)	$ 0.165	$ 0.11
Redeemable Non-Controlling Interest [Member]
Increase (Decrease) In Equity
Redeemable noncontrolling interest, balance at beginning of period	$ 8.7	$ 30.7
Net income, redeemable non-controlling interest	0.3	0.4
Redeemable noncontrolling interest, other comprehensive income loss net of tax	0.3	(0.2)
Redeemable noncontrolling interest, balance at end of period	$ 9.3	$ 30.9
Common Stock
Increase (Decrease) In Equity
Balance (in shares)	1,212.9	1,201.3
Balance at beginning of period	$ 1.2	$ 1.2
Retirement of treasury stock	$ 0.0	$ 0.0
Retirement of treasury stock (in shares)	(2.7)	(2.8)
Stock options exercised (in shares)	2.2	5.4
Stock option exercised	$ 0.0	$ 0.0
Balance (in shares)	1,212.4	1,203.9
Balance at end of period	$ 1.2	$ 1.2
Treasury Stock
Increase (Decrease) In Equity
Balance (in shares)	(3.6)	(3.5)
Balance at beginning of period	$ (199.7)	$ (142.8)
Purchase of treasury stock	$ (180.9)	$ (153.8)
Purchase of treasury stock (in shares)	(2.7)	(2.8)
Retirement of treasury stock	$ 180.9	$ 153.8
Retirement of treasury stock (in shares)	2.7	2.8
Stock options exercised (in shares)	0.5	0.9
Stock option exercised	$ 25.7	$ 39.0
Balance at end of period	$ (174.0)	$ (103.8)
Balance (in shares)	(3.1)	(2.6)
Additional Paid in Capital
Increase (Decrease) In Equity
Balance at beginning of period	$ 3,601.8	$ 3,100.6
Stock option exercised	43.8	99.1
Stock-based compensation expense	26.6	23.8
Balance at end of period	3,672.2	3,223.5
Retained Earnings
Increase (Decrease) In Equity
Balance at beginning of period	7,105.0	5,921.1
Net income, excluding portion attributable to redeemable noncontrolling interest	737.8	548.7
Retirement of treasury stock	(180.9)	(153.8)
Stock option exercised	(16.4)	(20.4)
Dividends declared	(199.6)	(132.1)
Balance at end of period	7,445.9	6,163.5
Accumulated Other Comprehensive Loss
Increase (Decrease) In Equity
Balance at beginning of period	(716.3)	(533.6)
Other comprehensive income (loss), excluding portion attributable to redeemable noncontrolling interests	72.2	(69.3)
Balance at end of period	(644.1)	(602.9)
Noncontrolling Interests
Increase (Decrease) In Equity
Balance at beginning of period	55.4	49.3
Net income, excluding portion attributable to redeemable noncontrolling interest	6.1	2.9
Other comprehensive income (loss), excluding portion attributable to redeemable noncontrolling interests	0.4	(0.8)
Distributions to shareholders of noncontrolling interests		0.8
Balance at end of period	$ 61.9	$ 52.2