Annual report pursuant to Section 13 and 15(d)

DEBT AND FINANCING ARRANGEMENTS DEBT AND FINANCING ARRANGEMENTS - Average Interest Rate (Details)

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DEBT AND FINANCING ARRANGEMENTS DEBT AND FINANCING ARRANGEMENTS - Average Interest Rate (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Apr. 01, 2014
Debt Instrument [Line Items]      
Document Fiscal Year Focus 2015    
Principal Value $ 14,167    
Senior notes | 4.50% senior notes      
Debt Instrument [Line Items]      
Maturity Jan. 01, 2013    
Senior notes | 3.875% senior notes      
Debt Instrument [Line Items]      
Principal Value $ 1,000   $ 1,000
Maturity Jan. 01, 2014    
Average Effective Percentage Rate 0.00% 0.94%  
Senior notes | 1.125% senior notes      
Debt Instrument [Line Items]      
Principal Value $ 375    
Maturity Jan. 01, 2017    
Average Effective Percentage Rate 0.68% 0.60%  
Senior notes | 5.50% senior notes      
Debt Instrument [Line Items]      
Principal Value $ 750    
Maturity Jan. 01, 2018    
Average Effective Percentage Rate 2.54% 2.49%  
Senior notes | 5.125% senior notes      
Debt Instrument [Line Items]      
Principal Value $ 1,000    
Maturity Jan. 01, 2019    
Average Effective Percentage Rate 2.06% 1.97%  
Senior notes | 3.125% senior notes      
Debt Instrument [Line Items]      
Principal Value $ 1,500    
Maturity Jan. 01, 2021    
Average Effective Percentage Rate 1.04% 1.06%  
Senior notes | 2.45% senior notes      
Debt Instrument [Line Items]      
Principal Value $ 1,000    
Maturity Jan. 01, 2022    
Average Effective Percentage Rate 0.87% 0.82%