REVENUE (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

The following table disaggregates revenue by business segment, product and service offering and timing of transfer of control:


	Year Ended December 31, 2023
	Americas		Asia Pacific		Europe, Middle East, & Africa		Total
Sales by Product and Service Offering:
Critical infrastructure & solutions	$	2,560.5	$	911.4	$	977.2	$	4,449.1
Services & spares	823.3		429.7		339.0		1,592.0
Integrated rack solutions	460.7		186.7		174.7		822.1
Total	$	3,844.5	$	1,527.8	$	1,490.9	$	6,863.2

Timing of revenue recognition:
Products and services transferred at a point in time	$	2,932.3	$	1,163.9	$	942.4	$	5,038.6
Products and services transferred over time	912.2		363.9		548.5		1,824.6
Total	$	3,844.5	$	1,527.8	$	1,490.9	$	6,863.2


	Year Ended December 31, 2022
	Americas		Asia Pacific		Europe, Middle East, & Africa		Total
Sales by Product and Service Offering:
Critical infrastructure & solutions	$	1,608.4	$	949.3	$	917.6	$	3,475.3
Services & spares	754.6		441.7		284.3		1,480.6
Integrated rack solutions	365.6		210.3		159.7		735.6
Total	$	2,728.6	$	1,601.3	$	1,361.6	$	5,691.5

Timing of revenue recognition:
Products and services transferred at a point in time	$	1,925.0	$	1,242.6	$	985.7	$	4,153.3
Products and services transferred over time	803.6		358.7		375.9		1,538.2
Total	$	2,728.6	$	1,601.3	$	1,361.6	$	5,691.5


	Year Ended December 31, 2021
	Americas		Asia Pacific		Europe, Middle East, & Africa		Total
Sales by Product and Service Offering: (1)
Critical infrastructure & solutions	$	1,189.6	$	971.7	$	739.1	$	2,900.4
Services & spares	705.1		421.5		312.1		1,438.7
Integrated rack solutions	292.7		215.8		150.5		659.0
Total	$	2,187.4	$	1,609.0	$	1,201.7	$	4,998.1

Timing of revenue recognition:
Products and services transferred at a point in time	$	1,514.6	$	1,304.3	$	1,019.5	$	3,838.4
Products and services transferred over time	672.8		304.7		182.2		1,159.7
Total	$	2,187.4	$	1,609.0	$	1,201.7	$	4,998.1

(1)For the year ended December 31, 2021, E&I sales from November 1, 2021 to December 31, 2021 of $21.7 and $45.7 are included in Americas; and Europe, Middle East & Africa reportable segments, respectively.

Schedule of Contract Assets, Liabilities and Deferred Revenue

The opening and closing balances of current and long-term deferred revenue are as follows:


	Balances at December 31, 2023		Balances at December 31, 2022

Deferred revenue - current	$	638.9	$	358.7
Deferred revenue - noncurrent (1)	61.8		49.5

(1) Noncurrent deferred revenue is recorded within “Other long-term liabilities” on the Consolidated Balance Sheets.