Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 24, 2014	Dec. 31, 2013		Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	87			42
Total liabilities	(23)			(15)
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	32			41
Total liabilities	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]
Total assets	55			1
Total liabilities	(23)			(15)
Other Noncurrent Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			(3)
Cross-currency swaps	(10)			0
Other Noncurrent Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			0
Cross-currency swaps	0			0
Other Noncurrent Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			(3)
Cross-currency swaps	(10)			0
Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			(5)
Cross-currency swaps	(2)			0
Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			0
Cross-currency swaps	0			0
Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			(5)
Cross-currency swaps	(2)			0
Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Derivatives Not Designated as Hedges [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	(4)			(2)
Foreign currency forwards and swaps	(7)			(5)
Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Derivatives Not Designated as Hedges [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0			0
Foreign currency forwards and swaps	0			0
Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Derivatives Not Designated as Hedges [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	(4)			(2)
Foreign currency forwards and swaps	(7)			(5)
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps	9			0
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps	0			0
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps	9			0
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Derivatives Not Designated as Hedges [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps	3			1
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Derivatives Not Designated as Hedges [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps	0			0
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Derivatives Not Designated as Hedges [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps	3			1
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps	43			0
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps	0			0
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps	43			0
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	32			41
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	32			41
Available-for-sale Securities [Member] | 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]
Mutual funds	0			0
Senior Unsecured Notes Due 2019 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest Rate	3.25%		3.25%	3.25%		3.25%
Net Investment Hedging [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
3.250% Notes	0	[1]		0	[1]
Net Investment Hedging [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
3.250% Notes	0	[1]		0	[1]
Net Investment Hedging [Member] | Other Noncurrent Liabilities [Member] | 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]
3.250% Notes	0	[1]		0	[1]

[1] Included in the consolidated balance sheets at carrying amount.