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RESTRUCTURING, INTEGRATION, SEPARATION AND IPO COSTS - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Cost-rationalization and integration initiatives |  |  |  |
Separation and IPO-related costs included in selling, general and administrative expenses | $ 653 | $ 572 | $ 1,944 | $ 1,731
Restructuring and Integration Costs |  |  |  |
Cost-rationalization and integration initiatives |  |  |  |
Liabilities associated with restructuring, integration and separation costs | $ 16 |  | 16 |
Costs incurred |  |  | 9 | 12
Restructuring payments |  |  | 13 | 14
Separation and IPO Costs |  |  |  |
Cost-rationalization and integration initiatives |  |  |  |
Restructuring, integration, separation, and IPO costs |  |  | 20 | 1
Separation and IPO-related costs included in selling, general and administrative expenses |  |  | $ 91 | $ 4

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585 + Details
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