FAIR VALUE MEASUREMENTS (Recognized Assets and Liabilities at Fair Value) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Apr. 18, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent consideration			$ 26
Recurring Basis [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities	$ 48	$ 49
Cash surrender value of life insurance policies	30	30
Available-for-sale equity securities	10	9
Total assets	103	106
Deferred compensation liabilities	84	85
Contingent consideration	3	17
Total liabilities	103	135
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets / Liabilities, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities	48	49
Cash surrender value of life insurance policies	0	0
Available-for-sale equity securities	10	9
Total assets	58	58
Deferred compensation liabilities	0	0
Contingent consideration	0	0
Total liabilities	0	0
Recurring Basis [Member] | Significant Other Observable Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities	0	0
Cash surrender value of life insurance policies	30	30
Available-for-sale equity securities	0	0
Total assets	45	47
Deferred compensation liabilities	84	85
Contingent consideration	0	0
Total liabilities	96	113
Recurring Basis [Member] | Significant Unobservable Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities	0	0
Cash surrender value of life insurance policies	0	0
Available-for-sale equity securities	0	0
Total assets	0	1
Deferred compensation liabilities	0	0
Contingent consideration	3	17
Total liabilities	7	22
Recurring Basis [Member] | Interest Rate Swaps [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	15	17
Derivative instruments, liabilities	12	13
Recurring Basis [Member] | Interest Rate Swaps [Member] | Quoted Prices in Active Markets for Identical Assets / Liabilities, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0	0
Derivative instruments, liabilities	0	0
Recurring Basis [Member] | Interest Rate Swaps [Member] | Significant Other Observable Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	15	17
Derivative instruments, liabilities	12	13
Recurring Basis [Member] | Interest Rate Swaps [Member] | Significant Unobservable Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	0	0
Derivative instruments, liabilities	0	0
Recurring Basis [Member] | Call Option [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities	4	5
Recurring Basis [Member] | Call Option [Member] | Quoted Prices in Active Markets for Identical Assets / Liabilities, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities	0	0
Recurring Basis [Member] | Call Option [Member] | Significant Other Observable Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities	0	0
Recurring Basis [Member] | Call Option [Member] | Significant Unobservable Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities	$ 4	5
Recurring Basis [Member] | Put Option [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset		1
Recurring Basis [Member] | Put Option [Member] | Quoted Prices in Active Markets for Identical Assets / Liabilities, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset		0
Recurring Basis [Member] | Put Option [Member] | Significant Other Observable Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset		0
Recurring Basis [Member] | Put Option [Member] | Significant Unobservable Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset		1
Recurring Basis [Member] | Forward Starting Interest Rate Swaps [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities		15
Recurring Basis [Member] | Forward Starting Interest Rate Swaps [Member] | Quoted Prices in Active Markets for Identical Assets / Liabilities, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities		0
Recurring Basis [Member] | Forward Starting Interest Rate Swaps [Member] | Significant Other Observable Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities		15
Recurring Basis [Member] | Forward Starting Interest Rate Swaps [Member] | Significant Unobservable Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instruments, liabilities		$ 0