INTANGIBLES (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Change in the Carrying Amount of Goodwill by Segment

The change in the carrying amount of goodwill by segment for the year ended December 31, 2019 is as follows:

	Freight		Transit
In millions	Segment		Segment		Total
Balance at December 31, 2018	$	899.1	$	1,497.4	$	2,396.5
Additions	5,989.3		12.2		6,001.5
Foreign currency impact	(11.8)		(25.6)		(37.4)
Balance at December 31, 2019	$	6,876.6	$	1,484.0	$	8,360.6

Intangible Assets of the Company, Other Than Goodwill and Trademarks

Intangible assets of the Company, other than goodwill and trade names, consist of the following:

	December 31,
In millions	2019		2018
Intellectual property, patents, and other intangibles, net of accumulated amortization of $123.8 and $40.1	$	1,108.9	$	13.3
Backlog, net of accumulated amortization of $92.0 and $2.0	1,342.1		2.0
Customer relationships, net of accumulated amortization of $212.9 and $158.5	1,029.9		531.8
Total	$	3,480.9	$	547.1

Estimated Amortization Expense Five Succeeding Years

Estimated amortization expense for the five succeeding years is as follows (in millions):

2020	$	278.7
2021	277.7
2022	277.3
2023	276.8
2024	267.3