Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2022

Pension [Member]

Net Periodic Benefit Cost

	Successor		Successor		Predecessor
	Pension Benefits
	For the three months ended June 30,		For the two months ended June 30,		For the one month ended April 30,
($ in millions)	2022		2021		2021
Components of total pension benefit cost
Service cost	$	20	$	13	$	8
Interest cost on projected benefit obligation		25		18		8
Expected return on plan assets		(50)		(31)		(16)
Amortization of unrecognized loss		-		-		6
Total pension (benefit) cost	$	(5)	$	-	$	6
	Successor		Successor		Predecessor
	Pension Benefits
	For the six months ended June 30,		For the two months ended June 30,		For the four months ended April 30,
($ in millions)	2022		2021		2021
Components of total pension benefit cost
Service cost	$	41	$	13	$	32
Interest cost on projected benefit obligation		49		18		31
Expected return on plan assets		(99)		(31)		(61)
Amortization of unrecognized loss		-		-		24
Total pension (benefit) cost	$	(9)	$	-	$	26

OPEB [Member]

Net Periodic Benefit Cost

	Successor		Successor		Predecessor
	Postretirement
	For the three months ended June 30,		For the two months ended June 30,		For the one month ended April 30,
($ in millions)	2022		2021		2021
Components of net periodic postretirement benefit cost
Service cost	$	3	$	3	$	2
Interest cost on projected benefit obligation		8		5		2
Amortization of prior service (benefit)		(3)		(1)		(3)
Remeasurement (gain) loss		(96)		13		-
Amortization of unrecognized loss		-		-		2
Net periodic postretirement (benefit) cost	$	(88)	$	20	$	3
	Successor		Successor		Predecessor
	Postretirement
	For the six months ended June 30,		For the two months ended June 30,		For the four months ended April 30,
($ in millions)	2022		2021		2021
Components of net periodic postretirement benefit cost
Service cost	$	7	$	3	$	7
Interest cost on projected benefit obligation		14		5		9
Amortization of prior service (benefit)		(6)		(1)		(10)
Remeasurement (gain) loss		(150)		13		-
Amortization of unrecognized loss		-		-		5
Net periodic postretirement (benefit) cost	$	(135)	$	20	$	11