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Basis of Presentation (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Summary of Reclassification From Prior Period [Line Items] |  |  |
Prepaid pension | $ 737 |  | $ 1,033
Reclassification adjustment, amount transferred from operating activities to issuance of shares for employee benefit plans in financing activities | 128 | $ 162 |
Reclassification adjustment, amount transferred from account payable and accrued liabilities in operating activities to financing activities |  | 118 |
Reclassification Adjustment, amount transferred from other assets and liabilities in operating activities to financing activities |  | 44 |
Noncontrolling interests and other financing activities | $ (42) | (6) |
Scenario, Previously Reported [Member] |  |  |
Summary of Reclassification From Prior Period [Line Items] |  |  |
Noncontrolling interests and other financing activities |  | (5) |
Dividends paid to noncontrolling interests |  | $ (1) |
Accounting Standard Update 2015-03 [Member] | Other Current Assets [Member] |  |  |
Summary of Reclassification From Prior Period [Line Items] |  |  |
Deferred Finance Costs, Net |  |  | 4
Accounting Standard Update 2015-03 [Member] | Other Noncurrent Assets [Member] |  |  |
Summary of Reclassification From Prior Period [Line Items] |  |  |
Deferred Finance Costs, Net |  |  | $ 33

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- Definition For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition Cumulative employer's contributions in excess of net pension cost recognized, before the adoption of the recognition provisions of FAS 158. Under FAS 158, prepaid pension costs are no longer recognized in the statement of financial position. Note that there is a separate concept for noncurrent assets relating to defined benefit pension and other defined benefit postretirement plans for use under the recognition provisions of FAS 158. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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