FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Debt) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Short-term Bank Loans and Notes Payable	$ 81		$ 81		$ 176
Current portion of long-term debt	4,769		4,769		2,000
Other Short-term Borrowings	215		215		164
Bank drafts and short-term borrowings	5,065		5,065		2,340
Debt Instrument, Face Amount	43,141		43,141		48,711
Adjustments to Principal Value, Unamortized basis adjustment from swap terminations	124		124		149
Debt Instrument, Unamortized Discount	(270)		(270)		(303)
Debt Instrument, Unamortized Premium	1,437		1,437		1,755
Total Debt	44,446		44,446		50,336
Long-term debt	39,677		39,677		48,336
Long-term debt, fair value	49,800		49,800		58,500
Interest payments			1,200	$ 1,300
Line of Credit Facility, Maximum Borrowing Capacity	$ 6,000		$ 6,000
Number of Revolving Credit Facilities	4		4
Payment for Debt Extinguishment or Debt Prepayment Cost			$ 4,000
Unrealized Gain (Loss) on Investments	$ (19)	$ 170	2	577
Gain (Loss) on Extinguishment of Debt	0	$ 0	(281)	$ 0
Extinguishment of Debt, Amount			3,500
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Derivative Liability	14		14		$ 24
2.875% Senior Notes due 2021
Debt Instrument [Line Items]
Debt Instrument, Face Amount	500		500
2.55% Senior Notes due 2021
Debt Instrument [Line Items]
Debt Instrument, Face Amount	1,000		1,000
2.250% Senior Notes due 2021
Debt Instrument [Line Items]
Debt Instrument, Face Amount	500		500
$2 Billion Maximum Borrowing Capacity
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,000		2,000
$1 Billion Maximum Borrowing Capacity
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,000		1,000
$1.5 Billion Maximum Borrowing Capacity
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,500		$ 1,500