FAIR VALUE MEASUREMENTS (Basis of Fair Value Measurements on a Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	$ 130	$ 53
Long-term Debt, Liabilities at Fair Value	22,807	18,000
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	130	66
Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	21
Interest Rate Derivative Liabilities, at Fair Value	157	242
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	21
Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodities Derivative Assets, at Fair Value	54	77
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	109
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	109
Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Assets at Fair Value	500	5,043
Interest in trade accounts receivable conduits, Assets at Fair Value	1,237	943
Assets, at Fair Value	(3,836)	(7,967)
Long-term Debt, Liabilities at Fair Value	22,807	18,000
Liabilities, at Fair Value	23,055	18,284
Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodities Derivative Assets, at Fair Value	56	6
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		1
Interest Rate Derivative Liabilities, at Fair Value	213	248
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		14
Fair Value, Measurements, Recurring [Member] | Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodities Derivative Assets, at Fair Value	84	109
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		52
Interest Rate Derivative Liabilities, at Fair Value	30	32
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		52
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		0
Interest Rate Derivative Liabilities, at Fair Value	5	4
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	706	603
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	608	612
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	645	651
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Assets at Fair Value	0	0
Interest in trade accounts receivable conduits, Assets at Fair Value	0	0
Assets, at Fair Value	(667)	(569)
Long-term Debt, Liabilities at Fair Value	0	0
Liabilities, at Fair Value	20	6
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	48	5
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	20	6
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	619	564
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Assets at Fair Value	500	5,043
Interest in trade accounts receivable conduits, Assets at Fair Value	0	0
Assets, at Fair Value	(2,062)	(6,508)
Long-term Debt, Liabilities at Fair Value	22,807	18,000
Liabilities, at Fair Value	23,165	18,344
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	29	2
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	214	256
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	193	161
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	139	84
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	5	4
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	87	39
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	608	612
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	645	651
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Assets at Fair Value	0	0
Interest in trade accounts receivable conduits, Assets at Fair Value	1,237	943
Assets, at Fair Value	(1,237)	(943)
Long-term Debt, Liabilities at Fair Value	0	0
Liabilities, at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Assets at Fair Value	$ 0	$ 0