Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Finite-lived Intangible Assets Amortization Expense

Amortization expense related to finite-lived intangible assets was as follows:

	2017		2016		2015
Amortization expense	$	683.4	$	687.9	$	631.8

Schedule of Indefinite-Lived Intangible Assets

Goodwill by segment at December 31 was as follows:

	2017		2016
Human pharmaceutical products	$	1,366.8	$	1,366.4
Animal health	3,003.3		2,606.3
Total goodwill	$	4,370.1	$	3,972.7

Schedule of Intangible Assets and Goodwill

The components of intangible assets other than goodwill at December 31 were as follows:

	2017							2016
Description	Carrying Amount, Gross		Accumulated Amortization			Carrying Amount, Net		Carrying Amount, Gross		Accumulated Amortization			Carrying Amount, Net
Finite-lived intangible assets:
Marketed products	$	7,682.0	$	(3,851.1	)	$	3,830.9	$	7,400.2	$	(3,301.4	)	$	4,098.8
Other	171.2		(70.1		)	101.1		150.7		(71.8		)	78.9
Total finite-lived intangible assets	7,853.2		(3,921.2		)	3,932.0		7,550.9		(3,373.2		)	4,177.7
Indefinite-lived intangible assets:
Acquired in-process research and development	97.2		—			97.2		180.2		—			180.2
Other intangibles	$	7,950.4	$	(3,921.2	)	$	4,029.2	$	7,731.1	$	(3,373.2	)	$	4,357.9

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The estimated amortization expense for each of the next five years associated with our finite-lived intangible assets as of December 31, 2017 is as follows:

	2018		2019		2020		2021		2022
Estimated amortization expense	$	558.2	$	352.2	$	350.7	$	349.0	$	336.2