Post-Employment Benefits (Details 3) (Significant Unobservable Inputs, USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Significant Unobservable Inputs
Retirement Plans
Defined benefit plans' assets at fair value	$ 668	$ 555
Change in value of assets that are measured using significant unobservable inputs
Plan assets at fair value, balance at the beginning of the period	555	783
Transfers in (out of) from other categories		6
Separation of AbbVie, Inc.		(165)
Actual return on plan assets:
Assets on hand at year end	25	29
Assets sold during the year	21	51
Purchases, sales and settlements, net	67	(149)
Plan assets at fair value, balance at the end of the period	$ 668	$ 555

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Actual return on plan assets, separately identifying the amount related to assets sold during the period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

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Actual return on plan assets, separately identifying the amount related to assets still held at the reporting date.

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The amount of decrease in the plan assets attributed to the sale, liquidation, spin-off or other divestiture of a corporate division or subsidiary.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations.

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Transfers in and out of Level 3. For example, transfers due to changes in the observability of significant inputs.

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