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Pension and Other Postretirement Employee Benefit Plans (Tables)
 3 Months Ended
Mar. 31, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Components of net periodic benefit costs reported in the Consolidated Statements of Income and other comprehensive income
 
Pension plans
 
 
 
 
U.S.
 
Non-U.S.
 
OPEB plans
Three months ended March 31, (in millions)
2012

2011

 
2012

2011

 
2012

2011

Components of net periodic benefit cost
 
 
 
 
 
 
 
 
Benefits earned during the period
$
68

$
62

 
$
10

$
9

 
$
—

$
—

Interest cost on benefit obligations
106

113

 
31

33

 
11

13

Expected return on plan assets
(195
)
(198
)
 
(33
)
(36
)
 
(22
)
(22
)
Amortization:
 
 
 
 
 
 
 
 
Net (gain)/loss
72

41

 
9

12

 
2

—

Prior service cost/(credit)
(11
)
(10
)
 
—

—

 
—

(2
)
Net periodic defined benefit cost
40

8

 
17

18

 
(9
)
(11
)
Other defined benefit pension plans(a)
4

7

 
2

4

 
NA

NA

Total defined benefit plans
44

15

 
19

22

 
(9
)
(11
)
Total defined contribution plans
81

78

 
80

78

 
NA

NA

Total pension and OPEB cost included in compensation expense
$
125

$
93

 
$
99

$
100

 
$
(9
)
$
(11
)
(a)
Includes various defined benefit pension plans which are individually immaterial.