Long-Term Debt - Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Total long-term debt	$ 1,301	$ 1,159
Less current portion	(630)	(333)
Total long-term debt, less current portion	671	826
0.33% due 2014, floating interest rate at Libor + 0.017% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	40	60
0.34% due 2015, floating interest rate at Libor + 0.026% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	28	37
0.36% due 2016, floating interest rate at Libor + 0.052% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	77	97
0.63% due 2016, floating interest rate at Libor + 0.317% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	103	129
0.53% due 2016, floating interest rate at Libor + 0.213% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	114	143
1.42% due 2020, floating interest rate at Libor + 1.099% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	100
1.27% due 2020, floating interest rate at Libor + 0.956% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	221
1.02% due 2020, floating interest rate at Euribor + 0.817% [Member]
Debt Instrument [Line Items]
Funding program loans from European Investment Bank	132
0.54% (weighted average), due 2013-2018, fixed interest rate [Member]
Debt Instrument [Line Items]
Other Loans Payable	7	10
1.95% (weighted average), due 2017, fixed interest rate [Member]
Debt Instrument [Line Items]
Other Loans Payable	12
6.03% (weighted average), due 2013-2017, fixed interest rate [Member]
Debt Instrument [Line Items]
Capital Lease	5	9
0.58%, due 2013, floating interest rate at Euribor + 0.40% [Member]
Debt Instrument [Line Items]
Senior Bonds	462	453
1.50% convertible bonds due 2016 [Member]
Debt Instrument [Line Items]
Convertible debt		$ 221

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, this element represents the carrying value of loans payable which were initially due after one year or beyond the operating cycle, if longer, and which are not otherwise defined in the taxonomy.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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