Amount of costs associated with malpractice claims and insurance premiums incurred during an accounting period, less insurance recoveries and returns of previously paid premiums.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 450
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68049836&loc=d3e5870-115623

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 720
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68060100&loc=d3e8578-115644

Name:	us-gaap_MalpracticeLossContingencyClaimsIncurredNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

PROPERTY AND PROFESSIONAL AND GENERAL LIABILITY INSURANCE - Professional and General Liability Reserves (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Other operating expense, net
Insurance coverage
Malpractice expense	$ 73	$ 113
Professional and General Liability Reserves
Insurance coverage
Self insurance reserve	$ 917		$ 965