Derivatives and Other Hedging Instruments (Schedule of the Fair Value of Derivative Instruments) (Details) (Fair Value, Measurements, Recurring [Member], Level 2 Inputs [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset derivatives	$ 121	[1]	$ 150	[1]
Liability derivatives	75		87
Derivative assets and liabilities subject to master netting arrangement	54		40
Other accrued liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash collateral	30	[2],[3]	44	[2],[3]
Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset derivatives	35		62
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash collateral	17		13
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset derivatives	29	[3]	55	[3]
Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Accounts and Notes Receivable, Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset derivatives	6		7
Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other accrued liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	4		10
Not Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	71		77
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash collateral	13		31
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Accounts and Notes Receivable, Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset derivatives	86	[2]	88	[2]
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other accrued liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	70		76
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Other accrued liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	$ 1		$ 1

[1] The company's derivative assets and liabilities subject to enforceable master netting arrangements totaled $54 at December 31, 2013 and $40 at December 31, 2012.

[2] Cash collateral held as of December 31, 2013 and 2012 represents $13 and $31, respectively, related to foreign currency derivatives not designated as hedging instruments.

[3] Cash collateral held as of December 31, 2013 and 2012 represents $17 and $13, respectively, related to interest rate swap derivatives designated as hedging instruments.