Note 12 - Debt (Details) - Long-term Debt (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Note 12 - Debt (Details) - Long-term Debt [Line Items]
Current portion of long-term debt	$ 36	$ 21
Long term debt
Long term debt	3,263	3,293
Long-term debt	3,227	3,272
Debentures, 8.875%, Due 2016 [Member]
Long term debt
Debentures	66	67
Debentures, 1.45%, Due 2017 [Member]
Long term debt
Debentures	250	250
Debentures, 6.625%, Due 2019 [Member]
Long term debt
Debentures	243	238
Debentures, 4.25%, Due 2020 [Member]
Long term debt
Debentures	287	276
Debentures, 8.875%, Due 2021 [Member]
Long term debt
Debentures	69	70
Debentures, 3.70%, due 2023 [Member]
Long term debt
Debentures	249	249
Medium-Term Notes, Average Rate 7.66%, Due Through 2023 [Member]
Long term debt
Debentures	45	45
Debentures, 7.00%, Due 2024 [Member]
Long term debt
Debentures	99	99
Debentures, 6.85%, Due 2029 [Member]
Long term debt
Debentures	170	172
Debentures, Callable, 7.25%, Due 2036 [Member]
Long term debt
Debentures	249	249
Debentures, 4.70%, Due 2037 [Member]
Long term debt
Debentures	250	250
Debentures, 5.75%, Due 2040 [Member]
Long term debt
Debentures	398	398
Debentures, 4.75%, Due 2042 [Member]
Long term debt
Debentures	499	499
Other, Average Rate 4.94%, Due Through 2042 [Member]
Long term debt
Long term debt	$ 389	$ 431

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer and 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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