In the 2020 third quarter, Arconic Corporation recorded a net charge of $3 in Restructuring and other charges, which were comprised of the following components: a $3 charge for the settlement of certain employee retirement benefits (see Note G); a $2 credit for the reversal of reserves established in prior periods; a $1 charge for layoff costs associated with the separation of approximately 30 employees in the Extrusions segment in response to the impact of COVID 19; and a $1 charge for other items.

In the 2020 nine-month period, Arconic Corporation recorded a net charge of $61 in Restructuring and other charges, which were comprised of the following components: a $58 charge for the settlement of certain employee retirement benefits (see Note G); a $25 net gain related to the sales of an extrusions plant in South Korea and an aluminum rolling mill in Brazil (see Note N); an $18 charge for layoff costs associated with the separation of approximately 440 employees across the Company in response to the impact of COVID 19 (see Note A); a $14 credit for the reversal of reserves established in prior periods, including $5 related to an environmental matter (see Note O); an $11 charge for costs, of which $8 is for layoff costs associated with approximately 140 employees, related to the planned closure and related reorganizations of several small facilities in the Building and Construction Systems and Extrusions segments; a $4 charge for legacy non-income tax matters in Brazil; a $2 charge for an allocation of ParentCo’s corporate restructuring activity (see Cost Allocations in Note A); and a $7 charge for other items.

In the 2019 third quarter and nine-month period, Arconic Corporation recorded a net charge of $64 and $104, respectively, in Restructuring and other charges, which were comprised of the following components: a $59 impairment charge (both periods) for the assets associated with an aluminum rolling mill in Brazil as a result of signing a definitive sale agreement (see Note N); a $3 and $28 charge, respectively, for layoff costs, including the separation of approximately 120 and 370 employees, respectively, (all within the Rolled Products and Building and Construction Systems segments); a $10 charge (nine-month period) for the impairment of the carrying value of a tradename intangible asset; a $2 and $5 net charge, respectively, for an allocation of ParentCo’s corporate restructuring activity (see Cost Allocations in Note A); and a $2 net charge (nine-month period) for other items.


	Third quarter ended September 30,				Nine months ended September 30,
	2020		2019		2020		2019
Rolled Products	$	(1)	$	61	$	15	$	69
Building and Construction Systems	—		2		6		31
Extrusions	1		(1)		(27)		(1)
Segment total	—		62		(6)		99
Corporate	3		2		67		5
	$	3	$	64	$	61	$	104

As of September 30, 2020, approximately 310 of the 580 employees associated with 2020 restructuring programs and approximately 340 of the 370 (previously 480) employees associated with 2019 restructuring programs were separated. The total number of employees associated with 2019 restructuring programs was updated to reflect the reversal of a program initiated by ParentCo in 2019, natural attrition, and employees initially identified for separation accepting other positions within the Company. Most of the remaining separations for the 2020 and 2019 restructuring programs are expected to be completed during the remainder of 2020. In the 2020 third quarter and nine-month period, Arconic Corporation made cash payments of $3 and $8, respectively, against layoff reserves related to 2020 restructuring programs and $2 and $8, respectively, against layoff reserves related to 2019 restructuring programs.


	Layoff costs		Other costs		Total
Reserve balances at December 31, 2018	$	1	$	3	$	4
Cash payments	(12)		(3)		(15)
Restructuring charges	30		2		32
Other(1)	1		(1)		—
Reserve balances at December 31, 2019	20		1		21
Separation-related adjustments(2)	2		—		2
Cash payments	(16)		(2)		(18)
Restructuring charges	26		3		29
Other(1)	(9)		(1)		(10)
Reserve balances at September 30, 2020(3)	$	23	$	1	$	24