|**INCOME FROM CONTINUING OPERATIONS PER SHARE (Tables)**                                      | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|**Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent [Abstract]**   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Schedule of Computation of Income From Continuing Operations Per Share                        | The computations of income from continuing operations per share are as follows:201820172016(In millions, except per share amounts)Income from continuing operations$721$638$611Adjustments for participating securities outstanding(2)(2)(2)Income from continuing operations used in per basic and diluted common share calculations (A)$719$636$609Basic weighted average common shares outstanding (B)118.6122.6123.8Impact of dilutive share-based awards2.51.71.2Diluted weighted average common shares outstanding (C)121.1124.3125.0Income from continuing operations per basic common share (A)/(B)$6.06$5.19$4.91Income from continuing operations per diluted common share (A)/(C)$5.94$5.12$4.87
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|                                                                                              | 2018                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
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|                                                                                              | (In millions, except per share amounts)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Income from continuing operations                                                             | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Adjustments for participating securities outstanding                                          | (2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Income from continuing operations used in per basic and diluted common share calculations (A) | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Basic weighted average common shares outstanding (B)                                          | 118.6                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Impact of dilutive share-based awards                                                         | 2.5                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Diluted weighted average common shares outstanding (C)                                        | 121.1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Income from continuing operations per basic common share (A)/(B)                              | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Income from continuing operations per diluted common share (A)/(C)                            | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

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