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EARNINGS AND DIVIDENDS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Earnings Per Share [Abstract]        
Earnings, net of tax $ 255 $ 297 $ 506 $ 468
Weighted average shares used for basic EPS (in shares) 147,800,000 148,600,000 147,800,000 148,600,000
Dilutive effect of stock options and other awards 1,100,000 1,200,000 1,100,000 1,200,000
Weighted average shares used for diluted EPS (in shares) 148,900,000 149,800,000 148,900,000 149,800,000
Earnings, basic [1] $ 1.73 $ 2.00 $ 3.43 $ 3.15
Earnings, diluted [1] $ 1.71 $ 1.98 $ 3.40 $ 3.12
Underlying options excluded from the computation of diluted earnings per share (in shares) 1,056,961 619,418 1,076,935 272,143
Shares repurchased (in shares) 344,790 65,000 632,071 435,000
Cash dividends declared (per share) $ 0.46 $ 0.40 $ 0.92 $ 0.80
[1] Earnings per share are calculated using whole dollars and shares.