SUPPLEMENTAL CASH FLOW & OTHER DATA (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Supplemental Cash Flow Elements [Abstract]
Depreciation expense	$ 55	$ 56	$ 112	$ 109
Amortization expense	20	25	41	47
Depreciation and amortization expense	75	81	153	156
Interest expense	(37)	(42)	(83)	(82)
Interest income	0	0	1	1
Interest expense, net	(37)	(42)	(82)	(81)
Interest paid	45	30	99	82
Income taxes paid	90	129	109	138
Assets acquired under capital leases	2	8	2	10
Accounts payable associated with capital expenditures	9	14	9	14
Dividends payable	55	48	55	48
Fair value of assets acquired	2	199	2	845
Fair value of liabilities assumed	0	12	0	82
Fair value of net assets acquired	2	187	2	763
Merger consideration paid (payable), net	4	(30)	4	(30)
Cash paid for business acquisitions	6	157	6	733
Less: Cash acquired	0	1	0	10
Business acquisitions, net of cash acquired	$ 6	$ 156	$ 6	$ 723