ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

12 Months Ended

Dec. 31, 2018

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Loss

The following table summarizes the changes and after-tax balances of each component of accumulated other comprehensive loss ("AOCL") for the years ended December 31, 2018, 2017 and 2016:

Accumulated Other Comprehensive Loss	Cumulative Translation Adj			Pension and Other Postretire Benefits			Total Accum Other Comp Loss
In millions
2016
Balance at Jan 1, 2016	$	(61	)	$	(1,167	)	$	(1,228	)
Other comprehensive loss before reclassifications	(1		)	(133		)	(134		)
Amounts reclassified from AOCL	—			42			42
Net other comprehensive loss	(1		)	(91		)	(92		)
Balance at Dec 31, 2016	$	(62	)	$	(1,258	)	$	(1,320	)
2017
Other comprehensive loss before reclassifications	—			(83		)	(83		)
Amounts reclassified from AOCL	3			48			51
Net other comprehensive income (loss)	3			(35		)	(32		)
Balance at Dec 31, 2017	$	(59	)	$	(1,293	)	$	(1,352	)
2018
Other comprehensive income (loss) before reclassifications	2			(22		)	(20		)
Amounts reclassified from AOCL	—			65			65
Net other comprehensive income	2			43			45
Reclassification of stranded tax effects 1	—			(254		)	(254		)
Balance at Dec 31, 2018	$	(57	)	$	(1,504	)	$	(1,561	)

1. Amounts reclassified to retained earnings as a result of the adoption of ASU 2018-02. See Notes 1 and 2 for additional information.

The tax effects on the net activity related to each component of other comprehensive income (loss) for the years ended December 31, 2018, 2017 and 2016 were as follows:

Tax Benefit (Expense) 1
In millions	2018			2017			2016
Pension and other postretirement benefit plans	$	(13	)	$	(3	)	$	54

1. Prior period amounts were updated to conform with the current year presentation.

Reclassification out of Accumulated Other Comprehensive Income

A summary of the reclassifications out of AOCL for the years ended December 31, 2018, 2017 and 2016 is provided as follows:

Reclassifications Out of AOCL										Consolidated Statements of Income Classification
	2018			2017			2016
In millions
Cumulative translation adjustments	$	—		$	3		$	—		See (1) below
Pension and other postretirement benefit plans	85			76			67			See (2) below
Tax benefit	(20		)	(28		)	(25		)	See (3) below
After tax	65			48			42
Total reclassifications for the period, after-tax	$	65		$	51		$	42

1. "Sundry income (expense) - net."

2. Included in the computation of net periodic benefit cost of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 15 for additional information.

3. "Provision (Credit) for income taxes."