Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 5)

v3.3.1.900
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 5) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Estimated future benefit payments for funded and unfunded plans    
2016 $ 582  
2017 567  
2018 597  
2019 616  
2020 637  
2021-2025 $ 3,397  
Assumed health care cost trend rates    
Health care cost trend rate assumed for the next year (as a percent) 7.00% 7.50%
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 2021 2020
Pension benefits    
Estimated future benefit payments for funded and unfunded plans    
2016 $ 521  
2017 504  
2018 533  
2019 551  
2020 570  
2021-2025 3,065  
Other benefits    
Estimated future benefit payments for funded and unfunded plans    
2016 61  
2017 63  
2018 64  
2019 65  
2020 67  
2021-2025 332  
Estimated federal subsidies expected to be received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003, for the period 2016-2020 4  
Estimated federal subsidies expected to be received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003, for the period 2021-2025 3  
United States Pension Plan of US Entity [Member]    
Defined Benefit Plan Disclosure    
Contributions expected to be made in next fiscal year $ 512