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Annual report pursuant to Section 13 and 15(d)

Assets And Liabilities Measured At Fair Value (Details)

v3.3.1.900
Assets And Liabilities Measured At Fair Value (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Ìý Ìý
Short term marketable securities $ 15 $ 199
Estimate of Fair Value Measurement [Member] Ìý Ìý
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Ìý Ìý
Cash equivalents 68 507
Short term marketable securities 15 199
Available-for-sale securities 474 769
Financial instrument assets 232 305
Debt 995 990
Level 1 Ìý Ìý
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Ìý Ìý
Cash equivalents 68 507
Short term marketable securities 15 Ìý
Available-for-sale securities 425 691
Financial instrument assets Ìý 96
Level 2 Ìý Ìý
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Ìý Ìý
Short term marketable securities Ìý 199
Available-for-sale securities 49 78
Financial instrument assets 232 209
Debt $ 995 $ 990