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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS
(in millions)
Additions
Balance at Beginning of PeriodCharges to Cost and ExpenseOther Additions(Deductions)Balance at End of Period
Year ended December 31, 2022
Allowance for credit losses$7.8$2.6 
(a)
$— $(2.0)
(b)
$8.4 
Allowance for unbilled receivables and project close-out liabilities96.89.4
(a)
40.3
(g)
(29.5)
(b)
117.0 
Valuation allowance for inventory 11.12.5
(c)
—(1.4)
(d)
12.2 
Valuation allowance for deferred tax assets54.211.6
(e)
29.6
(g)
(7.8)
(f)
87.6 
Total
$169.9$26.1$69.9$(40.7)$225.2 
Year ended December 31, 2021
Allowance for credit losses$20.5$2.8
(a)
$—$(15.5)
(b)
$7.8 
Allowance for unbilled receivables and project close-out liabilities50.467.0
(a)
—(20.6)
(b)
96.8 
Valuation allowance for inventory8.53.1
(c)
—(0.5)
(d)
11.1 
Valuation allowance for deferred tax assets45.89.4
(e)
—(1.0)
(f)
54.2 
Total
$125.2$82.3$—$(37.6)$169.9 
Year ended December 31, 2020
Allowance for credit losses$10.1$12.1
(a)
$—$(1.7)
(b)
$20.5 
Allowance for unbilled receivables and project close-out liabilities57.338.5
(a)
—(45.4)
(b)
50.4 
Valuation allowance for inventory7.71.8
(c)
—(1.0)
(d)
8.5 
Valuation allowance for deferred tax assets48.86.8
(e)
—(9.8)
(f)
45.8 
Total
$123.9$59.2$—$(57.9)$125.2 

(a)    Provisions for receivables and project close-out liabilities.
(b)    Write-offs of and reversals for receivables and project close-out liabilities.
(c)    Provisions for obsolete inventory and other adjustments to net realizable value.
(d)    Inventory write-offs.
(e)    Additions related to federal, foreign and state attributes.
(f)     Deductions related to federal, foreign and state attributes.
(g)     Assumption of acquisition-related balances.