Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 5)

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 5) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Apr. 02, 2010
Dec. 31, 2012
Dec. 31, 2011
Defined Benefit Plan Disclosure      
Contributions expected to be made in next fiscal year   $ 640  
Estimated future benefit payments for funded and unfunded plans      
2013   510  
2014   534  
2015   557  
2016   575  
2017   608  
2018-2022   3,281  
Assumed health care cost trend rates      
Health care cost trend rate assumed for the next year (as a percent)   8.00% 8.00%
Rate at which the cost trend rate is assumed to decline, the ultimate trend rate (as a percent)   5.00% 5.00%
Year in which the rate reaches the ultimate trend rate   2019 2018
Effect of enactment of Patient Protection and Affordable Care Act (HR 3590) on deferred tax assets 14    
Pension benefits
     
Estimated future benefit payments for funded and unfunded plans      
2013   452  
2014   473  
2015   493  
2016   510  
2017   542  
2018-2022   2,929  
Other benefits
     
Estimated future benefit payments for funded and unfunded plans      
2013   58  
2014   61  
2015   64  
2016   65  
2017   66  
2018-2022   352  
Estimated federal subsidies expected to be received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003, for the period 2013-2017   18  
Estimated federal subsidies expected to be received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003, for the period 2018-2022   22  
Primary US Plan [Member]
     
Defined Benefit Plan Disclosure      
Contributions expected to be made in next fiscal year   $ 359