As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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-Name Accounting Standards Codification

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Net number of non-option equity instruments granted to participants.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Gross number of share options (or share units) granted during the period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Incentive Stock Programs (Details) (USD $) In Millions, except Share data, unless otherwise specified		3 Months Ended				6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 Stock options	Jun. 30, 2013 Replacement stock options	Jun. 30, 2013 Restricted stock awards	Jun. 30, 2013 Restricted stock units	Jun. 30, 2013 Stock option plan
Share-based Compensation Arrangement by Share-based Payment Award
Grants in period, stock options (in shares)		4,410,648	856,157
Grants in period, restricted stock (in shares)				835,300	6,065,329
Incentive stock programs, shares reserved for future grants	130,000,000
Stock options outstanding, number of shares						46,570,725
Exercisable options, number of shares						39,436,059
Stock options outstanding, weighted-average remaining life						4 years 2 months 12 days
Exercisable options, weighted-average remaining life						3 years 9 months 18 days
Stock options outstanding, weighted-average exercise price (in dollars per share)						$ 26.13
Exercisable options, weighted-average exercise price (in dollars per share)						$ 24.99
Aggregate intrinsic value of options outstanding						$ 417
Aggregate intrinsic value of options exercisable						398
Total unrecognized compensation cost	$ 230
Total unrecognized compensation cost, recognition period						3 years