BUSINESS SEGMENTS - Capital Expenditures (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Capital expenditures	$ 183	$ 135	$ 653
Total segment \| U.S. & Canada
Segment Reporting Information [Line Items]
Capital expenditures	13	12	287
Total segment \| International
Segment Reporting Information [Line Items]
Capital expenditures	12	17	166
Unallocated corporate and other
Segment Reporting Information [Line Items]
Capital expenditures	$ 158	$ 106	$ 200

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration