|**NON-OPERATING INCOME**                            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|**Nonoperating Income (Expense) [Abstract]**        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|NON-OPERATING INCOME                                | NOTE 20: NON-OPERATING INCOMEThe components of non-operating income were as follows:20182017(In millions)Pension income(1)$184$164Losses on extinguishment of debt(2)(24)—Adjustment to gain on sale of business—2Net income related to intellectual property matters(1)—Other(3)—$156$166_______________(1)Non-service components of net periodic pension and postretirement benefit costs, including interest cost, expected return on plan assets and amortization of net actuarial gain is reported as part of the "Non-operating income" line item in our Consolidated Statement of Income as a result of our adoption of ASU 2017-17 as discussed inNote 2: Accounting Changes or Recent Accounting Pronouncements.(2)Losses associated with our optional redemption of the entire outstanding$400 millionprincipal amount of our4.4%Notes due December 15, 2020 and$400 millionprincipal amount of our5.55%Notes due October 1, 2021, the repayment in full of$253 millionin remaining outstanding indebtedness under the5-year tranche of our$1.3 billionsenior unsecured term loan facility and the termination of our 2015 Credit Agreement. SeeNote 12: Credit ArrangementsandNote 13: Debtfor additional information.
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|                                                    | 2018                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|                                                    | (In millions)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Pension income(1)                                   | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Losses on extinguishment of debt(2)                 | (24                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Adjustment to gain on sale of business              | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Net income related to intellectual property matters | (1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Other                                               | (3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|(1)                                                 | Non-service components of net periodic pension and postretirement benefit costs, including interest cost, expected return on plan assets and amortization of net actuarial gain is reported as part of the "Non-operating income" line item in our Consolidated Statement of Income as a result of our adoption of ASU 2017-17 as discussed inNote 2: Accounting Changes or Recent Accounting Pronouncements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
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|(2)                                                 | Losses associated with our optional redemption of the entire outstanding$400 millionprincipal amount of our4.4%Notes due December 15, 2020 and$400 millionprincipal amount of our5.55%Notes due October 1, 2021, the repayment in full of$253 millionin remaining outstanding indebtedness under the5-year tranche of our$1.3 billionsenior unsecured term loan facility and the termination of our 2015 Credit Agreement. SeeNote 12: Credit ArrangementsandNote 13: Debtfor additional information.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

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