Quarterly report pursuant to Section 13 or 15(d)

Hedging Transactions and Derivative Financial Instruments (Details)

v3.7.0.1
Hedging Transactions and Derivative Financial Instruments (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Derivative Instrument Detail [Abstract]    
Maximum length of time over which future cash flow exposures are hedged (in years) 3 years  
Net Investment Hedges    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount $ 11,645 $ 11,213
Foreign currency denominated debt | Net Investment Hedges    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 11,640 11,113
Foreign currency contracts | Cash Flow Hedging [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 5,484 6,074
Foreign currency contracts | Net Investment Hedges    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 5 100
Commodity contracts | Cash Flow Hedging [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 8 12
Available-for-sale Securities [Member] | Fair Value Hedging [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 1,118 1,163
Cross Currency Swap | Cash Flow Hedging [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 1,851 1,851
Interest Rate Swap [Member] | Cash Flow Hedging [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 1,500 1,500
Interest Rate Swap [Member] | Fair Value Hedging [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 6,691 6,158
Designated as Hedging Instrument [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 391 565
Derivative instruments, liabilities, fair value 255 178
Designated as Hedging Instrument [Member] | Foreign currency contracts | Prepaid expenses and other assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 237 400
Designated as Hedging Instrument [Member] | Foreign currency contracts | Other Assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 77 60
Designated as Hedging Instrument [Member] | Foreign currency contracts | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 90 40
Designated as Hedging Instrument [Member] | Foreign currency contracts | Other Liabilities    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 68 54
Designated as Hedging Instrument [Member] | Commodity contracts | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 1 1
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Other Assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 77 105
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 36 36
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Other Liabilities    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 60 47
Not Designated as Hedging Instrument [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 87 317
Derivative instruments, liabilities, fair value 50 109
Not Designated as Hedging Instrument [Member] | Foreign currency contracts    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 6,259 5,276
Not Designated as Hedging Instrument [Member] | Foreign currency contracts | Prepaid expenses and other assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 50 284
Not Designated as Hedging Instrument [Member] | Foreign currency contracts | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 23 60
Not Designated as Hedging Instrument [Member] | Foreign currency contracts | Other Liabilities    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 17 16
Not Designated as Hedging Instrument [Member] | Commodity contracts    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative, Notional Amount 466 447
Not Designated as Hedging Instrument [Member] | Commodity contracts | Prepaid expenses and other assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 32 27
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other Assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 1 1
Not Designated as Hedging Instrument [Member] | Commodity contracts | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 4 16
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other Liabilities    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 1 1
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 0 8
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Other Liabilities    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 0 1
Not Designated as Hedging Instrument [Member] | Other derivative instruments | Prepaid expenses and other assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 4 4
Not Designated as Hedging Instrument [Member] | Other derivative instruments | Other Assets    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, assets, fair value 0 1
Not Designated as Hedging Instrument [Member] | Other derivative instruments | Accounts Payable and Accrued Liabilities [Member]    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value 3 2
Not Designated as Hedging Instrument [Member] | Other derivative instruments | Other Liabilities    
Fair Value, Derivatives Designated and Not Designated as Hedges    
Derivative instruments, liabilities, fair value $ 2 $ 5