Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net income (loss)	$ 3,074.6	$ 371.6	$ 3,455.3	$ 887.9
Subtract:
Net income (loss) attributable to noncontrolling interest	15.2	9.8	19.7	9.0
Adjustments to redemption amounts of redeemable noncontrolling interests		(1.9)
Total	$ 3,059.4	$ 363.7	$ 3,435.6	$ 878.9
Weighted-average shares outstanding:
Basic	252.6	271.3	256.0	272.1
Dilutive effects:
Diluted	256.3	275.1	260.0	275.7
Net income (loss) per common share:
Basic	$ 12.11	$ 1.34	$ 13.42	$ 3.23
Diluted	$ 11.94	$ 1.32	$ 13.21	$ 3.19
Nonqualified Stock Options
Dilutive effects:
Stock-based compensation awards	1.4	1.4	1.5	1.2
Restricted Stock Units
Dilutive effects:
Stock-based compensation awards	1.9	2.0	2.0	2.0
Performance Share Awards
Dilutive effects:
Stock-based compensation awards	0.4	0.4	0.5	0.4