Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Other Intangible Assets

Goodwill (Table)

	Retirement and Income Solutions		Principal Global Investors			Principal International			U.S. Insurance Solutions		Corporate		Consolidated
	(in millions)
Balance at January 1, 2014	$	57.4	$	256.3		$	730.0		$	56.6	$	—	$	1,100.3
Foreign currency		—		(3.9	)		(89.0	)		—		—		(92.9	)
Balance at December 31, 2014		57.4		252.4			641.0			56.6		—		1,007.4
Goodwill from acquisitions		—		3.1			101.7			—		—		104.8
Foreign currency		—		(3.4	)		(99.8	)		—		—		(103.2	)
Balance at December 31, 2015	$	57.4	$	252.1		$	642.9		$	56.6	$	—	$	1,009.0

Finite Lived Intangible Assets (Table)

	December 31, 2015		December 31, 2014
	(in millions)
Gross carrying value	$	766.7	$	674.1
Accumulated amortization		198.1		183.6
Net carrying value	$	568.6	$	490.5

Other Finite Lived Intangible Assets Estimated Amortization Expense (Table)

At December 31, 2015, the estimated amortization expense for the next five years is as follows (in millions):

Year ending December 31:
2016	$	47.3
2017		46.9
2018		46.6
2019		45.5
2020		45.0