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Postretirement Benefit Plans (Tables)
3 Months Ended
Sep. 28, 2018
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Benefit Cost
The following tables provide the components of our net periodic benefit income for our defined benefit plans, including defined benefit pension plans and other postretirement defined benefit plans:
 
Pension
 
Other Benefits
 
Quarter Ended
 
Quarter Ended
 
September 28, 2018
 
September 29, 2017
 
September 28, 2018
 
September 29, 2017
 
 
 
 
 
 
 
 
 
(In millions)
Net periodic benefit income
 
 
 
 
 
 
 
Service cost
$
9

 
$
10

 
$

 
$

Interest cost
52

 
48

 
2

 
2

Expected return on plan assets
(95
)
 
(92
)
 
(4
)
 
(4
)
Amortization of net actuarial loss (gain)

 

 
(2
)
 

Total net periodic benefit income
$
(34
)
 
$
(34
)
 
$
(4
)
 
$
(2
)