10. Other Income and Expenses

12 Months Ended

Dec. 31, 2016

Other Income and Expenses [Abstract]

Other Income and Other Expense Disclosure

10. OTHER INCOME AND EXPENSE, NET

Other (income) expense, net includes the following components (in millions):

	Year Ended December 31,
	2016			2015			2014
Interest and investment income	$	(14.7	)	$	(10.1	)	$	(13.5	)
Net realized gains on investments	(0.8		)	(1.6		)	—
Other-than-temporary impairment losses on investments	0.6			0.6			0.4
Miscellaneous other (income) expense items, net	—			—			0.1
Other (income) expense, net	$	(14.9	)	$	(11.1	)	$	(13.0	)

Other-than-temporary impairment losses on investments were recorded in 2016, 2015 and 2014 on certain of our available-for-sale investments and a certain equity investment in light of the continuing declines in their market prices at that time.