STOCKHOLDERS' EQUITY - Summary of Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2020		Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period (net of tax)					$ 18		$ 106
Cumulative Translation Adjustment		$ 430		$ 79	627		144
Unrealized gains on investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period (net of tax)					0		(1)
Cumulative translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period (net of tax)					0		(18)
Pension and other post-employment benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period (net of tax)					18		140
Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period (net of tax)					0		(15)
Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period (net of tax)		9		(2)	18		106
Reclassification out of Accumulated Other Comprehensive Loss | Unrealized gains on investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	[1]	0		0	0		(1)
Tax expense (benefit)	[2]	0		0	0		0
Total reclassifications for the period (net of tax)		0		0	0		(1)
Reclassification out of Accumulated Other Comprehensive Loss | Cumulative translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cumulative Translation Adjustment		0	[3]	0	0	[3]	(18)	[3]
Reclassification out of Accumulated Other Comprehensive Loss | Pension and other post-employment benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	[4]	7		4	15		171
Tax expense (benefit)	[2]	2		(6)	3		(31)
Total reclassifications for the period (net of tax)		9		(2)	18		140
Reclassification out of Accumulated Other Comprehensive Loss | Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	[5]	0		0	0		(18)
Tax expense (benefit)	[2]	0		0	0		3
Total reclassifications for the period (net of tax)		$ 0		$ 0	$ 0		$ (15)

[1] "Net sales" and "Sundry income (expense) - net."

[2] "Provision for income taxes on continuing operations."

[3] "Sundry income (expense) - net."

[4] These AOCL components are included in the computation of net periodic benefit cost of the Company's defined benefit pension and other post-employment benefit plans. See Note 17 for additional information.

[5] "Cost of sales," "Sundry income (expense) - net" and "Interest expense."