Revenue (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Accounts Receivable and Current and Long-Term Contract Assets and Liabilities

The Company’s Accounts receivable and current and long-term contract assets and liabilities are summarized in the following table.

	Accounts Receivable, Less Allowance		Contract Assets (Current)		Contract Assets (Long-Term)		Contract Liabilities (Current)		Contract Liabilities (Long-Term)
Balance sheet caption:	Accounts receivable		Other current assets		Other assets		Other accruals		Other liabilities
Balance at December 31, 2021	$	2,352.4	$	60.9	$	131.2	$	259.8	$	9.2
Balance at December 31, 2022	2,563.6		43.8		117.7		292.9		7.1

Schedule of Allowance for Doubtful Accounts

The following table summarizes the movement in the Company’s allowance for doubtful accounts:

	2022		2021		2020
Beginning balance	$	48.9	$	53.5	$	36.5
Adjustment upon adoption of ASU 2016-13(1)					3.0
Bad debt expense	65.3		33.8		56.8
Uncollectible accounts written off, net of recoveries	(57.6)		(38.4)		(42.8)
Ending balance	$	56.6	$	48.9	$	53.5

(1)The Company adopted ASU 2016-13 effective January 1, 2020, using the modified retrospective transition method, electing to not restate prior periods. Refer to Note 1 for additional detail.