EMPLOYEE BENEFIT PLANS (Tables) - Qualified Defined Benefit [Member]

12 Months Ended

Dec. 31, 2018

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Assumptions Used [Table Text Block]

Weighted average assumptions used to determine benefit obligations:

The rates below vary by plan and related work group.

	2018	2017
Discount rates	4.37% to 4.46%	3.69% to 3.78%
Rate of compensation increases	2.11% to 3.50%	2.11% to 16.51%

Weighted average assumptions used to determine net periodic benefit cost:

The rates below vary by plan and related work group.

	2018	2017	2016
Discount rates	3.69% to 3.78%	4.29% to 4.50%	4.55% to 4.69%
Expected return on plan assets	4.25% to 5.50%	5.50% to 6.00%	6.00% to 6.50%
Rate of compensation increases(a)	2.11% to 16.51%	2.12% to 2.59%	2.06% to 2.65%

Schedule of Allocation of Plan Assets [Table Text Block]

Plan asset by fund category (in millions):

	2018		2017		Fair Value Hierarchy
Fund type:
U.S. equity market fund	$	431	$	515	1
Non-U.S. equity fund	183		226		1
Credit bond index fund	1,135		1,232		1
Plan assets in common commingled trusts	$	1,749	$	1,973
Real estate	104		97		(a)
Cash equivalents	5		13		1
Total plan assets	$	1,858	$	2,083

(a) In accordance with Subtopic 820-10, certain investments that are measured at net asset value per share (or its equivalent) have not been classified in the fair value hierarchy.

The target and actual asset allocation of the funds in the qualified defined-benefit plans, by asset category, are as follows: 

	Salaried Plan(a)						All other plans
	Target		2018		2017		Target		2018		2017
Asset category:
Domestic equity securities	5% - 9%		6	%	8	%	25% - 33%		28	%	29	%
Non-U.S. equity securities	1% - 5%		3	%	3	%	10% - 16%		12	%	12	%
Fixed income securities	86% - 94%		91	%	89	%	48% - 58%		53	%	52	%
Real estate	—	%	—	%	—	%	2% - 8%		7	%	6	%
Cash equivalents	—	%	—	%	—	%	—	%	—	%	1	%
Plan assets			100	%	100	%			100	%	100	%

(a) As our Salaried Plan is frozen and fully funded, our investment strategies differ significantly from that of our other outstanding plans. Investments are in lower-risk securities, with earnings designed to match cash outflows.

Schedule of Net Funded Status [Table Text Block]

The following table sets forth the status of the qualified defined-benefit pension plans (in millions):

	2018			2017
Projected benefit obligation (PBO)
Beginning of year	$	2,387		$	2,043
Service cost	48			39
Interest cost	79			74
Actuarial (gain)/loss	(191		)	300
Benefits paid	(98		)	(69		)
End of year	$	2,225		$	2,387
Plan assets at fair value
Beginning of year	$	2,083		$	1,846
Actual return on plan assets	(127		)	291
Employer contributions	—			15
Benefits paid	(98		)	(69		)
End of year	$	1,858		$	2,083
Unfunded status	$	(367	)	$	(304	)
Percent funded	84		%	87		%

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

The amounts recognized in the consolidated balance sheets (in millions): 

	2018			2017
Accrued benefit liability-long term	$	392		$	335
Plan assets-long term (within Other noncurrent assets)	(25		)	(31		)
Total liability recognized	$	367		$	304

The amounts not yet reflected in net periodic benefit cost and included in AOCL (in millions):

	2018			2017
Prior service credit	$	(8	)	$	(9	)
Net loss	607			597
Amount recognized in AOCL (pretax)	$	599		$	588

Schedule of Net Benefit Costs [Table Text Block]

Net pension expense for the qualified defined-benefit plans included the following components (in millions): 

	2018			2017			2016
Service cost	$	48		$	39		$	37
Interest cost	79			74			73
Expected return on assets	(107		)	(106		)	(108		)
Amortization of prior service credit	(1		)	(1		)	(1		)
Recognized actuarial loss	33			26			25
Net pension expense	$	52		$	32		$	26

Schedule of Expected Benefit Payments [Table Text Block]

Future benefits expected to be paid over the next ten years under the qualified defined-benefit pension plans from the assets of those plans (in millions): 

	Total
2019	$	99
2020	113
2021	115
2022	129
2023	132
2024– 2028	741