Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 1,355.3	$ 1,456.5
Other comprehensive income (loss), net of tax (Note 10)	100.8	(362.3)
Comprehensive income	$ 1,456.1	$ 1,094.2