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Long-Term Employee Benefits Defined Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2013
Impact of sale of Business on Pension Plan [Member] | Pension Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Settlement and curtailment losses (gains) | $ 153
Impact of sale of Business on Other Long-Term Employee Benefit Plans [Member] | Other Long-Term Employee Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Settlement and curtailment losses (gains) | $ (153)

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- Definition Amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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