GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill were as follows:

In millions
	North America		International		Total
Balance as of December 31, 2021	$	2,470.8	$	344.9	$	2,815.7
Acquisition	1.7		—		1.7
Changes due to foreign currency fluctuations and other	—		(32.5)		(32.5)
Balance as of December 31, 2022	2,472.5		312.4		2,784.9
Divestitures	—		(43.6)		(43.6)
Changes due to foreign currency fluctuations and other	—		14.3		14.3
Balance as of December 31, 2023	$	2,472.5	$	283.1	$	2,755.6

Summary of Accumulated Non-Cash Impairment Charges by Segment

Accumulated non-cash impairment charges by segment were as follows:

In millions
	December 31,
	2023		2022
North America	$	134.8	$	134.8
International (1)	—		175.6
Total	$	134.8	$	310.4

(1)Change due to International divestitures in 2023. See Note 4 – Restructuring, Divestitures, and Asset Impairments for further information

Carrying Values of Other Intangible Assets

The values of other intangible assets were as follows:

In millions
	December 31,
	2023						2022
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Customer relationships	$	1,230.4	$	911.9	$	318.5	$	1,242.2	$	807.6	$	434.6
Covenants not-to-compete	2.6		2.6		—		2.6		2.6		—
Operating permits	10.3		10.1		0.2		12.3		11.9		0.4
Tradenames	1.1		0.6		0.5		1.1		0.6		0.5
Other	1.8		0.6		1.2		1.8		0.6		1.2
Indefinite-lived intangibles:
Operating permits	58.6		—		58.6		67.2		—		67.2
Tradenames	307.5		—		307.5		307.2		—		307.2
Total	$	1,612.3	$	925.8	$	686.5	$	1,634.4	$	823.3	$	811.1

Changes in Carrying Amount of Intangible Assets

The changes in the carrying amount of intangible assets were as follows:

In millions
	Total
Balance as of December 31, 2021	$	964.5
Acquisition	1.2
Divestitures	(12.6)
Amortization	(124.0)
Changes due to foreign currency fluctuations	(15.5)
Balance as of December 31, 2022	811.1
Divestitures	(16.3)
Impairments	(3.1)
Amortization	(112.0)
Changes due to foreign currency fluctuations	6.8
Balance as of December 31, 2023	$	686.5

Estimated Intangible Asset Amortization Expense

Our estimated intangible asset amortization expense for each of the next five years is as follows for the years ending December 31:

In millions
2024	$	110.3
2025	89.5
2026	28.1
2027	22.7
2028	17.5