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SUPPLEMENTAL CASH FLOW & OTHER DATA (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Supplemental Cash Flow Elements [Abstract]        
Depreciation expense $ 50 $ 45 $ 143 $ 132
Amortization expense 19 18 54 54
Depreciation and amortization expense 69 63 197 186
Interest expense (39) (37) (114) (108)
Interest income 1 0 2 1
Interest expense, net (38) (37) (112) (107)
Interest paid 27 41 104 116
Income taxes paid 64 141 177 262
Accounts payable associated with capital expenditures 14 11 14 11
Accounts payable associated with purchases of treasury stock 15 0 15 0
Dividends payable 62 56 62 56
Fair value of assets acquired 229 4 343 139
Fair value of liabilities assumed 40 0 40 0
Fair value of net assets acquired 189 4 303 139
Merger consideration paid (payable), net (2) 0 (4) 0
Cash paid for business acquisitions 187 4 299 139
Less: Cash acquired 0 0 0 0
Business acquisitions, net of cash acquired $ 187 $ 4 $ 299 $ 139