XML 1050 R86.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Debt - Schedule of Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt | $ 8,776 | $ 9,085
Less: amount due within one year | 465 | 445
Long-term debt, excluding amount due within one year | 8,311 | 8,640
6% Notes, due 2012 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt |  | 322
6% Notes, due 2013 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 422 | 422
5.25% Convertible Notes, due 2014 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 575 | 575
5.55% Notes, due 2017 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 750 | 750
6.5% Bonds, due 2018 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 250 | 250
6.75% Notes, due 2018 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 750 | 750
5.72% Notes, due 2019 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 750 | 750
6.15% Notes, due 2020 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 1,000 | 1,000
5.40% Notes, due 2021 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 1,250 | 1,250
5.87% Notes, due 2022 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 627 | 627
5.9% Notes, due 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 625 | 625
6.75% Bonds, due 2028 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 300 | 300
5.95% Notes due 2037 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 625 | 625
BNDES Loans, due 2013-2029 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 397 | 627
Iowa Finance Authority Loan, due 2042 (4.75%) [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 250 |
Other [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 205 | $ 212

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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 FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
Name: | us-gaap_LongTermDebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
Name: | us-gaap_LongTermDebtNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant