DIVESTITURES Narrative (Details) shares in Millions, $ in Millions	3 Months Ended					9 Months Ended
	Dec. 31, 2019	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 ₨ / shares shares
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net settlement on transfer of North American Consumer Packaging business						$ 0	$ (40)
Net (gains) losses on sales and impairments of businesses		$ 8		$ 122		$ 153	122
North American Consumer Packaging [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Equity Method Investment Retained after Disposal, Ownership Interest after Disposal					20.50%
Gain (loss) on disposition of business					$ 516
Gain (loss) on disposition of business, net of taxes					$ 385
Discontinued operation, amount of adjustment to prior period gain (Loss) on disposal, before income tax				28
Discontinued operation, amount of adjustment to prior period gain (loss) on disposal, net of tax				$ 21
Cash provided by (used in) operating activities, discontinued operations							(25)
Net settlement on transfer of North American Consumer Packaging business							$ (40)
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | APPM [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of stock, price per share | ₨ / shares								₨ 275
Investment owned, balance, shares | shares								30
Sale of stock, percentage of ownership before transaction						75.00%
Assets held-for-sale, long lived, fair value disclosure			$ 119
Net (gains) losses on sales and impairments of businesses			152
Net (gains) losses on sale of assets and impairment charge, net of tax		8	$ 150
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax		2
Impairment of Long-Lived Assets to be Disposed of		6
Gain (loss) on sale of assets and impairment charge allocated to minority interest						$ 9
Gain (loss) on sale of assets and impairment charge allocated to minority interest, net of tax		$ 9
Subsequent Event [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | APPM [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	20.00%