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STOCK OWNERSHIP AND COMPENSATION PLANS (Employee Stock Purchase Plan and Defined Contribution Plans) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company match percentage for defined contribution plan	6.00%
Prior company match percentage of employee contributions	6.00%
Amended company match percentage of employee contributions	5.00%
Company's expense for contributions to its defined contribution plans	$ 73	$ 82	$ 79
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of maximum annual wages witheld for the ESPP	10.00%
Market price of company stock issued at a discount under the ESPP	85.00%
Number of shares available for award	5,000,000
Shares purchased by eligible employees under ESPP	406,000	425,000	464,000

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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