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REVENUE RECOGNITION - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 01, 2021	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cooperative advertising credits included in rebates	$ 1,980,000,000	$ 1,841,000,000	$ 1,980,000,000	$ 1,841,000,000		$ 1,813,000,000		$ 2,050,000,000
Price appreciation credits	2,100,000,000	1,664,000,000	4,127,000,000	3,676,000,000
Price Appreciation Credit
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Price appreciation credits			1,000,000	4,000,000
Rebates, Advertising Credits Portion
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cooperative advertising credits included in rebates	$ 41,000,000	$ 32,000,000	$ 41,000,000	$ 32,000,000	$ 32,000,000		$ 29,000,000

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