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Postretirement Benefits (Tables)
12 Months Ended
Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]  
Components Of Postretirement Benefit Expense
Postretirement Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Components Of Postretirement Benefit Expense
In millions    2011     2010     2009  

Service cost

   $ 2      $ 2      $ 2   

Interest cost

     21        23        31   

Actuarial loss

     9        12        23   

Amortization of prior service credits

     (25     (31     (29

Net postretirement benefit expense (a)

   $ 7      $ 6      $ 27   

 

(a)

Excludes $2.8 million of termination benefits in 2009 related to cost reduction programs and facility rationalizations that were recorded in Restructuring and other charges in the consolidated statement of operations.

Changes In Postretirement Benefit Obligation, Plan Assets, Funded Status And Amounts Recognized In Balance Sheet And Accumulated Other Comprehensive (Loss) Income
In millions    2011     2010  

Change in projected benefit obligation:

    

Benefit obligation, January 1

   $ 425      $ 473   

Service cost

     2        2   

Interest cost

     21        23   

Participants' contributions

     46        48   

Actuarial (gain) loss

     29        (21

Benefits paid

     (108     (110

Less: Federal subsidy

     10        10   

Benefit obligation, December 31

   $ 425      $ 425   

Change in plan assets:

    

Fair value of plan assets, January 1

   $ 0      $ 0   

Company contributions

     62        62   

Participants' contributions

     46        48   

Benefits paid

     (108     (110

Fair value of plan assets, December 31

   $ 0      $ 0   

Funded status, December 31

   $ (425   $ (425

Amounts recognized in the consolidated balance sheet under ASC 715:

    

Current liability

   $ (43   $ (48

Non-current liability

     (382     (377
     $ (425   $ (425

Amounts recognized in accumulated other comprehensive income under ASC 715 (pre-tax):

    

Net actuarial loss

   $ 81      $ 66   

Prior service credit

     (35     (60
     $ 46      $ 6   
Postretirement Benefit Adjustments Recognized In Other Comprehensive (Loss) Income
In millions        

Current year actuarial loss

   $ 24   

Amortization of actuarial loss

     (9

Amortization of prior service credit

     25   
     $ 40   
Estimated Total Future Postretirement Benefit Payments, Net Of Participant Contributions And Estimated Future Medicare Part D Subsidy Receipts
In millions   

Benefit

Payments

    

Subsidy

Receipts

 

2012

   $ 55       $ 11   

2013

     52         11   

2014

     49         9   

2015

     47         9   

2016

     44         7   

2017 – 2021

     189         32   
Net Cost [Member] | Postretirement Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Discount Rates Used To Determine Net Cost
      2011     2010     2009  

Discount rate

     5.30     5.40     5.90
Benefit Obligation [Member] | Postretirement Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Discount Rates Used To Determine Net Cost
      2011     2010  

Discount rate

     4.80     5.30

Health care cost trend rate assumed for next year

     8.00     8.50

Rate that the cost trend rate gradually declines to

     5.00     5.00

Year that the rate reaches the rate it is assumed to remain

     2017        2017