GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended						6 Months Ended		6 Months Ended		6 Months Ended		6 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2013 Enterix [Member]	Jun. 30, 2014 Intangible Assets Not Subject to Amortization - Tradenames [Member]	Dec. 31, 2013 Intangible Assets Not Subject to Amortization - Tradenames [Member]	Jun. 30, 2014 Intangible Assets Not Subject to Amortization - Other [Member]	Dec. 31, 2013 Intangible Assets Not Subject to Amortization - Other [Member]	Jun. 30, 2014 Customer-related intangibles [Member]	Dec. 31, 2013 Customer-related intangibles [Member]	Jun. 30, 2014 Non-compete agreements [Member]	Dec. 31, 2013 Non-compete agreements [Member]	Jun. 30, 2014 Technology [Member]	Dec. 31, 2013 Technology [Member]	Jun. 30, 2014 Other [Member]	Dec. 31, 2013 Other [Member]	Jun. 30, 2014 Total Amortizing Intangible Assets [Member]	Dec. 31, 2013 Total Amortizing Intangible Assets [Member]	Jun. 30, 2014 Solstas, Summit Health and Steward [Member]	Mar. 07, 2014 Solstas Lab Parnters Group [Member]	Dec. 31, 2013 UMass, ATN, Dignity and Con Verge Combined [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Total intangible assets																						$ 210
Goodwill, Balance at beginning of period			5,649	5,536	5,536																	266
Goodwill acquired during the period			375		150
Goodwill impairment and write-off associated with sale of businesses during the period			0		37	37
Goodwill, Balance at end of period	6,024		6,024		5,649																	266
Intangible assets																					268		108
Goodwill deductible for tax purposes																					104		135
Weighted Average Amortization Period											18 years		4 years		14 years		8 years		16 years
Intangible assets, Cost	1,486		1,486		1,218		244	244	1	1	927	670	43	43	119	119	152	141	1,241	973
Intangible assets, Accumulated Amortization	(369)		(369)		(322)						(233)	(210)	(32)	(27)	(33)	(28)	(71)	(57)	(369)	(322)
Amortizing intangible assets, Net	1,117		1,117		896		244	244	1	1	694	460	11	16	86	91	81	84	872	651
Amortization expense related to intangible assets	25	20	47	39
Remainder of 2014	47		47
Future Amortization Expense, 2015	84		84
Future Amortization Expense, 2016	74		74
Future Amortization Expense, 2017	71		71
Future Amortization Expense, 2018	64		64
Future Amortization Expense, 2019	62		62
Future Amortization Expense, Thereafter	470		470
Future Amortization Expense, Total			$ 872