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LONG-TERM DEBT AND CREDIT AGREEMENTS (Details) - USD ($)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Debt Instrument [Line Items]      
Total long-term debt, including current portion $ 17,690,000,000   $ 18,787,000,000
Less current portion (3,344,000,000)   (2,445,000,000)
Long-term Debt and Lease Obligation 14,346,000,000   16,342,000,000
Repayment of Long-term Debt 3,355,000,000 $ 4,237,000,000  
4.25% notes due 2021 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 0   800,000,000
Debt Instrument, Interest Rate, Stated Percentage 4.25%    
1.85% notes due 2021 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,500,000,000   1,500,000,000
Debt Instrument, Interest Rate, Stated Percentage 1.85%    
0.483% notes due 2022 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 500,000,000   2,500,000,000
Debt Instrument, Interest Rate, Stated Percentage 0.483%    
Repayment of Long-term Debt $ 2,000,000,000    
2.15% notes due 2022 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 600,000,000   600,000,000
Debt Instrument, Interest Rate, Stated Percentage 2.15%    
Floating rate notes due 2022 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 600,000,000   1,100,000,000
Repayment of Long-term Debt 500,000,000    
1.30% Euro notes due 2023 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,450,000,000   1,534,000,000
Debt Instrument, Interest Rate, Stated Percentage 1.30%    
3.35% notes due 2023 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 300,000,000   300,000,000
Debt Instrument, Interest Rate, Stated Percentage 3.35%    
0.00% Euro notes due 2024 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 580,000,000   614,000,000
Debt Instrument, Interest Rate, Stated Percentage 0.00%    
2.30% notes due 2024 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 750,000,000   750,000,000
Debt Instrument, Interest Rate, Stated Percentage 2.30%    
1.35% notes due 2025 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,250,000,000   1,250,000,000
Debt Instrument, Interest Rate, Stated Percentage 1.35%    
2.50% notes due 2026 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,500,000,000   1,500,000,000
Debt Instrument, Interest Rate, Stated Percentage 2.50%    
1.10% notes due 2027 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,000,000,000   0
Debt Instrument, Interest Rate, Stated Percentage 1.10%    
2.25% Euro notes due 2028 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 870,000,000   920,000,000
Debt Instrument, Interest Rate, Stated Percentage 2.25%    
2.70% notes due 2029 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 750,000,000   750,000,000
Debt Instrument, Interest Rate, Stated Percentage 2.70%    
1.95% notes due 2030 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,000,000,000   1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage 1.95%    
1.75% notes due 2031 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 1,500,000,000   0
Debt Instrument, Interest Rate, Stated Percentage 1.75%    
0.750% Euro notes due 2032 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 580,000,000   614,000,000
Debt Instrument, Interest Rate, Stated Percentage 0.75%    
5.70% notes due 2036 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 441,000,000   441,000,000
Debt Instrument, Interest Rate, Stated Percentage 5.70%    
5.70% notes due 2037 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 462,000,000   462,000,000
Debt Instrument, Interest Rate, Stated Percentage 5.70%    
5.375% notes due 2041 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 417,000,000   417,000,000
Debt Instrument, Interest Rate, Stated Percentage 5.375%    
3.812% notes due 2047 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 445,000,000   445,000,000
Debt Instrument, Interest Rate, Stated Percentage 3.812%    
2.80% notes due 2050 [Member]      
Debt Instrument [Line Items]      
Senior Notes $ 750,000,000   750,000,000
Debt Instrument, Interest Rate, Stated Percentage 2.80%    
Industrial development bond obligations, floating rate maturing at various dates through 2037 [Member]      
Debt Instrument [Line Items]      
Industrial development bond $ 22,000,000   22,000,000
6.625% debentures due 2028 [Member]      
Debt Instrument [Line Items]      
Junior Subordinated Notes $ 201,000,000   201,000,000
Debt Instrument, Interest Rate, Stated Percentage 6.625%    
9.065% debentures due 2033 [Member]      
Debt Instrument [Line Items]      
Junior Subordinated Notes $ 51,000,000   51,000,000
Debt Instrument, Interest Rate, Stated Percentage 9.065%    
Other including capitalized leases and debt issuance costs 8.0% weighted average maturing at various dates through 2026      
Debt Instrument [Line Items]      
Other long term debt $ 171,000,000   $ 266,000,000
Debt, Weighted Average Interest Rate 8.00%    
The Notes [Member]      
Debt Instrument [Line Items]      
Proceeds from Issuance of Debt $ 2,500,000,000    
Debt Issuance Costs, Net 18,000,000    
Syndicate Of Banks [Member] | $1.5B 364-Day Credit Agreement [Member]      
Line of Credit Facility [Line Items]      
Line of credit facility, current borrowing capacity 1,500,000,000    
Line of credit facility, borrowing capacity of prior agreement 1,500,000,000    
Line of credit facility, remaining borrowing capacity 1,500,000,000    
Syndicate Of Banks [Member] | Five Year Credit Agreement [Member]      
Line of Credit Facility [Line Items]      
Line of credit facility, current borrowing capacity 4,000,000,000    
Line of credit facility, borrowing capacity of prior agreement 4,000,000,000    
Line of credit facility, remaining borrowing capacity 4,000,000,000    
Line of credit facility, maximum borrowing capacity $ 4,500,000,000