Hedging Transactions and Derivative Financial Instruments (Details 2) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Apr. 03, 2015
Mar. 28, 2014
Dec. 31, 2014
Gains and (losses) related to derivative instruments      
Anticipated gains (losses) cash flows hedges, estimated reclassification to earnings during next twelve months $ 650    
Fixed-rate debt      
Gains and (losses) related to derivative instruments      
Increase (Decrease) in carrying value due to hedge adjustments 118    
Cash Flow Hedges      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (668) 123  
Gain (Loss) Reclassified from AOCI into Income (Effective Portion) 127 39  
Gain (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) 0 0  
Cash Flow Hedges | Interest Rate Swap [Member]      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 4,328   4,328
Cash Flow Hedges | Foreign currency contracts      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 13,100   13,224
Cash Flow Hedges | Foreign currency contracts | Net operating revenues      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (764) 61  
Gain (Loss) Reclassified from AOCI into Income (Effective Portion) 120 25  
Gain (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) 0 0  
Cash Flow Hedges | Foreign currency contracts | Cost of goods sold      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (19) 12  
Gain (Loss) Reclassified from AOCI into Income (Effective Portion) 12 13  
Gain (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) 0 0  
Cash Flow Hedges | Foreign currency contracts | Other income (loss) - net      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (18)    
Gain (Loss) Reclassified from AOCI into Income (Effective Portion) (2)    
Gain (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) 0    
Cash Flow Hedges | Currency Swap [Member]      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount     2,590
Cash Flow Hedges | Interest rate contracts | Interest Expense [Member]      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net 132 51  
Gain (Loss) Reclassified from AOCI into Income (Effective Portion) (3) 0  
Gain (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) 0 0  
Cash Flow Hedges | Commodity contracts      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 6   9
Cash Flow Hedges | Commodity contracts | Cost of goods sold      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net 1 (1)  
Gain (Loss) Reclassified from AOCI into Income (Effective Portion) 0 1  
Gain (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) 0 0  
Fair Value Hedges      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 4 (2)  
Fair Value Hedges | Other income (loss) - net      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (6) (4)  
Fair Value Hedges | Interest Expense [Member]      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 10 2  
Fair Value Hedges | Fixed-rate debt | Interest Expense [Member]      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (19) (3)  
Fair Value Hedges | Interest Rate Swap [Member]      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 8,452   6,600
Fair Value Hedges | Interest Rate Swap [Member] | Interest Expense [Member]      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 29 5  
Fair Value Hedges | Foreign currency contracts | Other income (loss) - net      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 112 18  
Fair Value Hedges | Available-for-sale Securities [Member]      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 994   1,358
Fair Value Hedges | Available-for-sale Securities [Member] | Other income (loss) - net      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (118) (22)  
Net Investment Hedges      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 3,021   2,047
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (498) 68  
Net Investment Hedges | Foreign currency contracts      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 2,047   2,047
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (424) 68  
Net Investment Hedges | Foreign currency denominated debt      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 974   0
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (74) 0  
Designated as Hedging Instrument [Member]      
Gains and (losses) related to derivative instruments      
Derivative Liability, Fair Value, Gross Liability 233   320
Not Designated as Hedging Instrument [Member]      
Gains and (losses) related to derivative instruments      
Derivative Liability, Fair Value, Gross Liability 226   240
Derivative Instruments, Gain (Loss) Recognized in Income, Net (108) 4  
Not Designated as Hedging Instrument [Member] | Foreign currency contracts      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 5,475   4,334
Not Designated as Hedging Instrument [Member] | Foreign currency contracts | Net operating revenues      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 9 (12)  
Not Designated as Hedging Instrument [Member] | Foreign currency contracts | Other income (loss) - net      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (17) 2  
Not Designated as Hedging Instrument [Member] | Commodity contracts      
Gains and (losses) related to derivative instruments      
Derivative, Notional Amount 1,058   816
Not Designated as Hedging Instrument [Member] | Commodity contracts | Net operating revenues      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (3) (2)  
Not Designated as Hedging Instrument [Member] | Commodity contracts | Cost of goods sold      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (24) 22  
Not Designated as Hedging Instrument [Member] | Commodity contracts | Selling, general and administrative expenses      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (5) (3)  
Not Designated as Hedging Instrument [Member] | Other derivative instruments | Other income (loss) - net      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net (68) 0  
Not Designated as Hedging Instrument [Member] | Other derivative instruments | Selling, general and administrative expenses      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 0 (3)  
Accrued Liabilities [Member] | Designated as Hedging Instrument [Member] | Foreign currency contracts      
Gains and (losses) related to derivative instruments      
Derivative Liability, Fair Value, Gross Liability 42   24
Accrued Liabilities [Member] | Designated as Hedging Instrument [Member] | Commodity contracts      
Gains and (losses) related to derivative instruments      
Derivative Liability, Fair Value, Gross Liability 1   1
Euro Denominated Debt [Domain] | Cash Flow Hedges      
Gains and (losses) related to derivative instruments      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net $ 92