Footnote 9 — Goodwill and Other Intangible Assets, Net

Goodwill activity for the six months ended June 30, 2018 is as follows (in millions):


								June 30, 2018
Segment	Net Book Value at December 31, 2017		Other Adjustments		Foreign Exchange			Gross Carrying Amount		Accumulated Impairment Charges			Net Book Value
Food and Appliances	$	1,990.0	$	—	$	(13.0	)	$	2,096.4	$	(119.4	)	$	1,977.0
Home and Outdoor Living		2,148.0		—		(2.0	)		2,146.0		—			2,146.0
Learning and Development		2,735.0		—		(22.0	)		3,453.7		(740.7	)		2,713.0
Other		—		—		—			—		—			—

	$	6,873.0	$	—	$	(37.0	)	$	7,696.1	$	(860.1	)	$	6,836.0

Other intangible assets, net are comprised of the following as of the dates indicated (in millions):


	June 30, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value		Amortization Periods (in years)
Trade names — indefinite life	$	8,533.2	$	—		$	8,533.2	$	8,563.6	$	—		$	8,563.6		N/A
Trade names — other		171.4		(29.8	)		141.6		190.7		(35.7	)		155.0		2–15
Capitalized software		503.3		(323.6	)		179.7		485.8		(302.9	)		182.9		3–12
Patents and intellectual property		136.6		(66.4	)		70.2		152.0		(81.4	)		70.6		3–14
Customer relationships and distributor channels		1,271.9		(150.0	)		1,121.9		1,324.7		(159.6	)		1,165.1		3–30
Other		109.0		(60.5	)		48.5		112.8		(50.4	)		62.4		3–5

	$	10,725.4	$	(630.3	)	$	10,095.1	$	10,829.6	$	(630.0	)	$	10,199.6

Amortization expense for intangible assets for continuing operations was $48.9 million and $42.8 million for the three months ended June 30, 2018 and 2017, respectively, and $98.6 million and $105 million for the six months ended June 30, 2018 and 2017, respectively. Amortization expense for intangible assets for discontinued continuing operations was $9.5 million and $36.6 million for the three months ended June 30, 2018 and 2017, respectively, and $41.5 million and $76.1 million for the six months ended June 30, 2018 and 2017, respectively. Amortization expense for the three and six months ended June 30, 2017 includes a measurement period expense (income) adjustment of ($2.8) million and $13.6 million, respectively, related to the valuation of non-compete agreements. The majority of these measurement period adjustments are included in the results from continuing operations.