Fair Value Measurements and Derivatives (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis [Table Text Block]

Fair value measurements on a recurring basis — Assets and liabilities that are carried in our balance sheet at fair value are as follows:

			Fair Value
Category	Balance Sheet Location	Fair Value Level	December 31,   2017		December 31,   2016
Available-for-sale securities	Marketable securities	1	$	5	$	4
Available-for-sale securities	Marketable securities	2	35		26
Currency forward contracts
Cash flow hedges	Accounts receivable - Other	2	1		2
Cash flow hedges	Other accrued liabilities	2	5		4
Undesignated	Accounts receivable - Other	2	1		1
Undesignated	Other accrued liabilities	2	3		1
Currency swaps
Cash flow hedges	Other noncurrent liabilities	2	177		12
Undesignated	Other accrued liabilities	2	—		3

Carrying Amounts and Fair Values of Financial Instruments [Table Text Block]

Fair value of financial instruments — The financial instruments that are not carried in our balance sheet at fair value are as follows:

	2017				2016
	Carrying Value		Fair Value		Carrying Value		Fair Value
Senior notes	$	1,500	$	1,592	$	1,550	$	1,612
Term Facility	275		275		—		—
Other indebtedness*	29		22		120		101
Total	$	1,804	$	1,889	$	1,670	$	1,713

* The carrying value includes the unamortized portion of a fair value adjustment related to a terminated interest rate swap at both dates. The carrying value and fair value also include a financial liability associated with certain build-to-suit lease arrangements at both dates.

Summary of Fixed-to-Fixed Cross-Currency Swaps [Table Text Block]

The following fixed-to-fixed cross-currency swaps were outstanding at December 31, 2017:

Underlying Financial Instrument						Derivative Financial Instrument
Description	Type	Face Amount		Rate		Designated Notional Amount		Traded Amount		Inflow Rate		Outflow Rate
June 2026 Notes	Payable	$	375	6.50	%	$	375	€	338	6.50	%	5.14	%
April 2025 Notes	Payable	$	400	5.75	%	$	400	€	371	5.75	%	3.85	%
Luxembourg Intercompany Notes	Receivable	€	281	3.91	%	€	281	$	300	6.00	%	3.91	%

Notional Amount of Currency Derivatives [Table Text Block]

The following currency derivatives were outstanding at December 31, 2017:

		Notional Amount (U.S. Dollar Equivalent)
Functional Currency	Traded Currency	Designated as Cash Flow Hedges		Undesignated		Total		Maturity
U.S. dollar	Mexican peso	$	109			$	109	Dec-18
Euro	U.S. dollar, Canadian dollar, Hungarian forint, British pound, Swiss franc, Indian rupee, Russian ruble, Chinese renminbi	45		6		51		Mar-19
British pound	U.S. dollar, Euro	1				1		Nov-18
Swedish krona	Euro, U.S. dollar	29				29		Feb-19
South African rand	U.S. dollar, Euro, Thai baht			9		9		Sep-18
Canadian dollar	U.S. dollar			11		11		Mar-19
Thai baht	U.S. dollar, Australian dollar			31		31		Dec-18
Brazilian real	U.S. dollar, Euro			33		33		Dec-18
Indian rupee	U.S. dollar, British pound, Euro			32		32		Jun-19
Total forward contracts		184		122		306
U.S. dollar	Euro	337				337		Sep-23
Euro	U.S. dollar	775				775		Jun-26
Total currency swaps		1,112		—		1,112
Total currency derivatives		$	1,296	$	122	$	1,418