Other-Net, (Income) Expense

12 Months Ended

Dec. 31, 2020

Nonoperating Income (Expense) [Abstract]

Other-Net, (Income) Expense

Other–Net, (Income) Expense

Other–net, (income) expense consisted of the following:

	2020		2019		2018
Interest expense	$	359.6	$	400.6	$	242.5
Interest income	(33.0)		(80.4)		(159.3)
Debt extinguishment loss (Note 11)	—		252.5		—
Gain on sale of antibiotic business in China (Note 3)	—		(309.8)		—
Retirement benefit plans	(251.8)		(209.9)		(240.5)
Other (income) expense	(1,246.7)		(344.6)		11.7
Other–net, (income) expense	$	(1,171.9)	$	(291.6)	$	(145.6)

For the years ended December 31, 2020 and 2019, other income was primarily related to net gains on investments (Note 7).