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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 |  |

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