Pension and Other Postretirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Retirement Benefits, Description [Abstract]

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

The following table provides a reconciliation of benefit obligations and plan assets of the company’s domestic and non-U.S. pension plans and postretirement benefit plans:

	Domestic Pension  Benefits						Non-U.S. Pension  Benefits						Postretirement Benefits
(In millions)	2017			2016			2017			2016			2017			2016
Change in Projected Benefit Obligations
Benefit Obligation at Beginning of Year	$	1,249		$	1,213		$	1,116		$	1,036		$	50		$	49
Business combinations	—			33			185			1			6			—
Service costs	—			—			26			24			1			1
Interest costs	43			51			21			27			2			2
Settlements	—			—			(60		)	(8		)	—			—
Plan participants' contributions	—			—			5			4			1			1
Actuarial (gains) losses	92			30			(34		)	150			6			1
Benefits paid	(84		)	(78		)	(37		)	(30		)	(4		)	(4		)
Currency translation and other	—			—			102			(88		)	1			—
Benefit Obligation at End of Year	$	1,300		$	1,249		$	1,324		$	1,116		$	63		$	50
Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year	$	944		$	945		$	853		$	817		$	8		$	7
Business combinations	—			—			101			—			—			—
Actual return on plan assets	161			71			32			125			1			1
Employer contribution	160			6			37			50			3			3
Settlements	—			—			(60		)	(8		)	—			—
Plan participants' contributions	—			—			5			4			1			1
Benefits paid	(84		)	(78		)	(37		)	(30		)	(4		)	(4		)
Currency translation and other	—			—			80			(105		)	—			—
Fair Value of Plan Assets at End of Year	$	1,181		$	944		$	1,011		$	853		$	9		$	8
Funded Status	$	(119	)	$	(305	)	$	(313	)	$	(263	)	$	(54	)	$	(42	)
Accumulated Benefit Obligation	$	1,300		$	1,249		$	1,256		$	1,048
Amounts Recognized in Balance Sheet
Non-current asset	$	—		$	—		$	100		$	63		$	6		$	4
Current liability	(7		)	(10		)	(10		)	(6		)	(3		)	(3		)
Non-current liability	(112		)	(295		)	(403		)	(320		)	(57		)	(43		)
Net amount recognized	$	(119	)	$	(305	)	$	(313	)	$	(263	)	$	(54	)	$	(42	)
Amounts Recognized in Accumulated Other Comprehensive Loss
Net actuarial loss	$	156		$	171		$	126		$	170		$	11		$	6
Prior service credits	—			—			10			8			—			—
Net amount recognized	$	156		$	171		$	136		$	178		$	11		$	6

Schedule of Assumptions Used [Table Text Block]

The actuarial assumptions used to compute the funded status for the plans are based upon information available as of December 31, 2017 and 2016 and are as follows:

	Domestic Pension Benefits				Non-U.S. Pension Benefits				Postretirement Benefits
	2017		2016		2017		2016		2017		2016
Weighted Average Assumptions Used to Determine Projected Benefit Obligations
Discount rate	3.55	%	4.07	%	2.10	%	1.95	%	3.43	%	3.77	%
Average rate of increase in employee compensation	4.00	%	4.00	%	2.59	%	3.09	%	—		—
Initial healthcare cost trend rate									6.73	%	6.70	%
Ultimate healthcare cost trend rate									5.04	%	5.08	%

The actuarial assumptions used to compute the net periodic pension benefit cost (income) are based upon information available as of the beginning of the year, as presented in the following table:

	Domestic Pension Benefits						Non-U.S. Pension Benefits
	2017		2016		2015		2017		2016		2015
Weighted Average Assumptions Used to Determine Net Benefit Cost (Income)
Discount rate	4.06	%	4.25	%	4.00	%	1.95	%	2.83	%	2.69	%
Average rate of increase in employee compensation	4.00	%	4.00	%	4.00	%	3.10	%	3.06	%	3.03	%
Expected long-term rate of return on assets	6.50	%	7.00	%	7.00	%	3.11	%	3.74	%	4.21	%

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The projected benefit obligation and fair value of plan assets for the company’s qualified and non-qualified pension plans with projected benefit obligations in excess of plan assets are as follows:

	Pension Plans
(In millions)	2017		2016
Pension Plans with Projected Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	$	2,059	$	1,907
Fair value of plan assets	1,527		1,276

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The accumulated benefit obligation and fair value of plan assets for the company's qualified and non-qualified pension plans with accumulated benefit obligations in excess of plan assets are as follows:

	Pension Plans
(In millions)	2017		2016
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets
Accumulated benefit obligation	$	1,962	$	1,847
Fair value of plan assets	1,495		1,275

Schedule of Net Benefit Costs [Table Text Block]

The net periodic pension benefit cost (income) includes the following components:

	Domestic Pension Benefits									Non-U.S. Pension Benefits
(In millions)	2017			2016			2015			2017			2016			2015
Components of Net Benefit Cost (Income)
Service cost-benefits earned	$	—		$	—		$	—		$	26		$	24		$	25
Interest cost on benefit obligation	43			51			50			21			27			28
Expected return on plan assets	(56		)	(49		)	(54		)	(29		)	(28		)	(33		)
Amortization of actuarial net loss	2			—			—			9			7			9
Settlement/curtailment loss (gain)	1			—			—			5			—			1
Special termination benefits	—			—			—			—			—			1
Net periodic benefit cost (income)	$	(10	)	$	2		$	(4	)	$	32		$	30		$	31

Schedule of Expected Benefit Payments [Table Text Block]

Estimated future benefit payments during the next five years and in the aggregate for the five fiscal years thereafter, are as follows:

(In millions)	Domestic Pension Benefits		Non-U.S. Pension Benefits		Post- retirement Benefits
Expected Benefit Payments
2018	$	87	$	46	$	3
2019	84		37		3
2020	83		39		3
2021	85		41		3
2022	82		43		3
2023-2027	394		250		16

Schedule of Allocation of Plan Assets [Table Text Block]

The fair values of the company’s plan assets at December 31, 2017 and 2016, by asset category are as follows:

	December 31,		Quoted Prices in Active Markets		Significant Other Observable Inputs		Significant Unobservable Inputs		Not Subject to Leveling (1)
(In millions)	2017		(Level 1)		(Level 2)		(Level 3)
Domestic Pension Plan Assets
U.S. equity funds	$	163	$	—	$	—	$	—	$	163
International equity funds	180		—		—		—		180
Fixed income funds	761		—		—		—		761
Private equity funds	2		—		—		—		2
Money market funds	75		—		—		—		75
Total Domestic Pension Plans	$	1,181	$	—	$	—	$	—	$	1,181
Non-U.S. Pension Plan Assets
Equity funds	$	75	$	—	$	—	$	—	$	75
Fixed income funds	312		—		—		—		312
Hedge funds	77		—		—		—		77
Multi-asset funds	79		—		—		—		79
Derivative funds	194		—		—		—		194
Alternative investments	17		—		—		—		17
Insurance contracts	202		—		202		—		—
Cash / money market funds	55		40		—		—		15
Total Non-U.S. Pension Plans	$	1,011	$	40	$	202	$	—	$	769
(1) Investments measured at the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.

	December 31,		Quoted Prices in Active Markets		Significant Other Observable Inputs		Significant Unobservable Inputs		Not Subject to Leveling (1)
(In millions)	2016		(Level 1)		(Level 2)		(Level 3)
Domestic Pension Plan Assets
U.S. equity funds	$	259	$	—	$	—	$	—	$	259
International equity funds	229		—		—		—		229
Fixed income funds	437		—		—		—		437
Private equity funds	2		—		—		—		2
Money market funds	17		—		—		—		17
Total Domestic Pension Plans	$	944	$	—	$	—	$	—	$	944
Non-U.S. Pension Plan Assets
Equity funds	$	123	$	56	$	—	$	—	$	67
Fixed income funds	294		20		—		—		274
Hedge funds	80		—		—		—		80
Multi-asset funds	12		—		—		—		12
Derivative funds	158		—		—		—		158
Insurance contracts	177		—		177		—		—
Cash / money market funds	9		5		—		—		4
Total Non-U.S. Pension Plans	$	853	$	81	$	177	$	—	$	595
(1) Investments measured at the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.