Segment Reporting (Reconciliation of Consolidated Segment Adjusted OIBDA) (Schedule) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting, Measurement Disclosures [Abstract]
Net earnings	$ 1,440.3	$ 1,017.7
Income tax expense	170.5	80.1
Other income, net	(10.1)	(52.4)
Share of results of affiliates, net	(1.7)	(33.4)
Losses on debt extinguishment, net	0.0	54.5
Realized and unrealized losses (gains) due to changes in fair values of certain investments and debt, net	(194.6)	529.8
Foreign currency transaction gains, net	(303.1)	(391.7)
Realized and unrealized gains on derivative instruments, net	(811.1)	(1,237.3)
Interest expense	335.1	313.3
Operating income	625.3	280.6
Impairment, restructuring and other operating items, net	44.4	31.0
Depreciation and amortization	634.2	783.5
Share-based compensation expense	63.4	55.2
Adjusted EBITDA	$ 1,367.3	$ 1,150.3