COMMITMENTS AND CONTINGENCIES (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended		12 Months Ended
	May 19, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012 Years	Dec. 31, 2011	Dec. 31, 2010
Debt Instrument [Line Items]
Bank guarantees				$ 1,000,000
2013				181,167,000
2014				140,261,000
2015				106,603,000
2016				72,070,000
2017				42,922,000
2018 and thereafter				130,243,000
Minimum lease payments				673,266,000
Noncancelable sub-lease income				0
Net minimum lease payments				673,266,000
Operating leases, rent expense				211,000,000	218,000,000	195,000,000
Total noncancelable future purchase commitments				96,000,000
Noncancelable future purchase commitments, to be incurred in 2013				39,000,000
Noncancelable future purchase commitments, to be incurred in 2014 and 2015				47,000,000
Remaining terms of lease obligations, minimum				11
Remaining terms of lease obligations, maximum				35
Agreement in principle amount Medi-Cal matter	241,000,000
Provision for special charge Medi-Cal matter			236,000,000
Payment for Medi-Cal matter		241,000,000
Litigation reserves				5,000,000	5,000,000
Self-insurance reserves				110,000,000	127,000,000
Noncancellable future purchase commitments, to be incurred thereafter				10,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding, amount				60,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Credit facility capacity				$ 85,000,000
Debt instrument, maturity date				Nov. 18, 2013