LONG-TERM DEBT AND CREDIT AGREEMENTS (Details) € in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Total long-term debt, including current portion	$ 18,787,000,000		$ 12,486,000,000
Less-current portion	(2,445,000,000)		(1,376,000,000)
Total Long-term debt	16,342,000,000		11,110,000,000
Long-term Debt, Fiscal Year Maturity [Abstract]
2021	2,445,000,000
2022	4,240,000,000
2023	1,862,000,000
2024	1,392,000,000
2025	1,255,000,000
Thereafter	7,593,000,000
Total long-term debt, including current portion	18,787,000,000		12,486,000,000
Less-current portion	(2,445,000,000)		(1,376,000,000)
Total Long-term debt	16,342,000,000		11,110,000,000
0.65% Euro notes due 2020 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 0		1,123,000,000
Various interest rates	0.65%	0.65%
4.25% notes due 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 800,000,000		800,000,000
Various interest rates	4.25%	4.25%
1.85% notes due 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,500,000,000		1,500,000,000
Various interest rates	1.85%	1.85%
0.483% notes due 2022 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 2,500,000,000		0
Various interest rates	0.483%	0.483%
2.15% notes due 2022 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 600,000,000		600,000,000
Various interest rates	2.15%	2.15%
Floating Rate Notes Due 2022 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,100,000,000		600,000,000
Floating Rate Notes Due 2022 [Member] | August 19, 2020 (Issuance date of additional Floating Rates Senior Notes due 2022) [Member]
Debt Instrument [Line Items]
Senior Notes	$ 500,000,000
Loans Receivable, Basis Spread on Variable Rate	0.23%	0.23%
1.30% Euro notes due 2023 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,534,000,000		1,404,000,000
Various interest rates	1.30%	1.30%
3.35% notes due 2023 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 300,000,000		300,000,000
Various interest rates	3.35%	3.35%
0.00% Euro notes due 2024 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 614,000,000	€ 500	0
Various interest rates	0.00%	0.00%
2.30% notes Due 2024 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 750,000,000		750,000,000
Various interest rates	2.30%	2.30%
1.350% notes due 2025 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,250,000,000		0
Various interest rates	1.35%	1.35%
2.50% notes due 2026 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,500,000,000		1,500,000,000
Various interest rates	2.50%	2.50%
2.25% Euro notes due 2028 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 920,000,000		842,000,000
Various interest rates	2.25%	2.25%
2.70% notes due 2029 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 750,000,000		750,000,000
Various interest rates	2.70%	2.70%
1.95% notes due 2030 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,000,000,000		0
Various interest rates	1.95%	1.95%
0.75% Euro notes due 2032 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 614,000,000	€ 500	0
Various interest rates	0.75%	0.75%
5.70% notes due 2036 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 441,000,000		441,000,000
Various interest rates	5.70%	5.70%
5.70% notes due 2037 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 462,000,000		462,000,000
Various interest rates	5.70%	5.70%
5.375% notes due 2041 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 417,000,000		417,000,000
Various interest rates	5.375%	5.375%
3.812% notes due 2047 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 445,000,000		445,000,000
Various interest rates	3.812%	3.812%
2.8% notes due 2050 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 750,000,000		0
Various interest rates	2.80%	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]
Debentures	$ 201,000,000		201,000,000
Various interest rates	6.625%	6.625%
9.065% debentures due 2033 [Member]
Debt Instrument [Line Items]
Debentures	$ 51,000,000		51,000,000
Various interest rates	9.065%	9.065%
Other (including capitalized leases and debt issuance costs), 8.9% weighted average interest rate maturing at various dates through 2025 [Member]
Debt Instrument [Line Items]
Other long term debt	$ 266,000,000		$ 278,000,000
Debt, Weighted Average Interest Rate	8.90%	8.90%
The 2022 Callable Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	$ 3,000,000,000.0
Payments of Debt Issuance Costs	10,000,000
The 2020 Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	3,000,000,000.0
Payments of Debt Issuance Costs	27,000,000
The 2020 Euro Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	1,100,000,000
Payments of Debt Issuance Costs	9,000,000
Term Loan Due 2022 [Member]
Debt Instrument [Line Items]
Senior Notes	3,000,000,000.0
Proceeds from Issuance of Long-term Debt	3,000,000,000.0
Payments of Debt Issuance Costs	7,000,000
Repayments of Debt	$ 3,000,000,000.0
Loans Receivable, Basis Spread on Variable Rate	1.25%	1.25%
Syndicate Of Banks [Member] | $1.5B Second 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, Remaining Borrowing Capacity	1,500,000,000
Syndicate Of Banks [Member] | 5 Year Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity	4,000,000,000.0
Line of credit facility, maximum borrowing capacity	4,500,000,000
Line of Credit Facility, Remaining Borrowing Capacity	4,000,000,000.0
Syndicate Of Banks [Member] | Term Loan Agreement [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Borrowing Capacity Of Prior Agreement	6,000,000,000.0
Amount of permanent reduction of the Unused Commitments	$ 3,000,000,000.0