Actuary and trustee reports indicate the following changes in the PBO and plan assets of Douglas-Roberts Industries during 2021:

Prior service cost at Jan. 1, 2021, from plan amendment at the beginning of 2018 (amortization: $4 million per year)	$	28	million
Net lossAOCI at Jan. 1, 2021 (previous losses exceeded previous gains)	$	80	million
Average remaining service life of the active employee group		10	years
Actuary's discount rate		7	%

($ in millions)					Plan
PBO					Assets
Beginning of 2021	$	600			Beginning of 2021		$	400
Service cost		80			Return on plan assets,
					8% (10% expected)			32
Interest cost, 7%		42
Loss (gain) on PBO		(14	)		Cash contributions			90
Less: Retiree benefits		(38	)		Less: Retiree benefits			(38	)
End of 2021	$	670			End of 2021		$	484

Required: 1-a. Determine Douglas-Roberts's pension expense for 2021. 1-b, 2. to 4. Prepare the appropriate journal entries to record the pension expense, to record any 2021 gains and losses, to record the cash contribution to plan assets and to record retiree benefits.

1b. Record the change in plan assets.

2. Record the change in the PBO.

3. Record the cash contribution to plan assets.

4. Record the retiree benefits paid.