XML 43 R33.htm IDEA: XBRL DOCUMENT v3.19.1
Retirement Benefits (Tables)
 3 Months Ended
Mar. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Schedule of net pension and retiree health benefit (income) cost
Net pension and retiree health benefit (income) cost included the following components:
 
Defined Benefit Pension Plans
 
Three Months Ended
March 31,
 
2019
 
2018
Components of net periodic benefit cost:
 
 
 
Service cost
$
61.8

 
$
77.6

Interest cost
120.7

 
112.0

Expected return on plan assets
(211.1
)
 
(211.0
)
Amortization of prior service cost
1.5

 
1.2

Recognized actuarial loss
69.6

 
89.9

Net periodic benefit cost
$
42.5

 
$
69.7


 
Retiree Health Benefit Plans
 
Three Months Ended
March 31,
 
2019
 
2018
Components of net periodic benefit income:
 
 
 
Service cost
$
8.8

 
$
10.7

Interest cost
14.6

 
13.9

Expected return on plan assets
(36.0
)
 
(43.9
)
Amortization of prior service benefit
(15.7
)
 
(20.5
)
Recognized actuarial loss
0.5

 
2.4

Net periodic benefit income
$
(27.8
)
 
$
(37.4
)