BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Changes in Allowance for Doubtful Accounts

The changes in allowance for doubtful accounts were reported as follows:

In millions	Year Ended December 31,
	2021		2020		2019
Balances at beginning of period	$	56.2	$	67.9	$	71.9
Bad debt expense, net of recoveries	9.0		21.7		25.7
Write-offs	(20.2)		(24.2)		(23.9)
Other changes (1)	(1.7)		(9.2)		(5.8)
Balances at end of period	$	43.3	$	56.2	$	67.9

(1) Amounts consist primarily of currency translation adjustments, and $0.7 million and $9.3 million relating to divestitures undertaken during 2021 and 2020, respectively. Additionally, 2020 amount includes impact of adoption of a new accounting standard.

Estimated Useful Lives of Assets

Depreciation and amortization is computed using the straight-line method over the estimated useful lives of the assets as follows:

Building and improvements	2 to 40 years
Machinery and equipment	2 to 30 years
Containers	2 to 20 years
Vehicles	2 to 10 years
Office equipment and furniture	2 to 20 years
Software and Enterprise Resource Planning system	2 to 10 years