Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2018

Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Components of net periodic benefit cost (income) of the pension plans for the three months endedJune 30 were as follows:

In millions	U.S. Pension Benefits						International Pension Benefits						Total Pension Benefits
	2018			2017			2018			2017			2018			2017
Net service cost	$	—		$	—		$	2		$	2		$	2		$	2
Interest cost	15			18			6			5			21			23
Expected return on plan assets	(11		)	(15		)	(8		)	(8		)	(19		)	(23		)
Net periodic benefit cost (income)	$	4		$	3		$	—		$	(1	)	$	4		$	2

Components of net periodic benefit cost (income) of the pension plans for the six months endedJune 30 were as follows:

In millions	U.S. Pension Benefits						International Pension Benefits						Total Pension Benefits
	2018			2017			2018			2017			2018			2017
Net service cost	$	—		$	—		$	4		$	4		$	4		$	4
Interest cost	30			36			11			10			41			46
Expected return on plan assets	(22		)	(29		)	(16		)	(17		)	(38		)	(46		)
Net periodic benefit cost (income)	$	8		$	7		$	(1	)	$	(3	)	$	7		$	4

Other Postretirement Benefits Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The benefit from the postretirement plan for the following periods were:

	Three months ended June 30						Six months ended June 30
	2018			2017			2018			2017
Amortization of:
Prior service benefit	$	(2	)	$	(2	)	$	(3	)	$	(3	)
Actuarial loss	1			1			1			1
Net postretirement benefit	$	(1	)	$	(1	)	$	(2	)	$	(2	)

Postemployment Retirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The net cost of the postemployment plan for the following periods were:

	Three months ended June 30						Six months ended June 30
In millions	2018			2017			2018			2017
Net service cost	$	9		$	5		$	19		$	19
Interest cost	1			—			2			1
Amortization of:
Prior service benefit	(1		)	(1		)	(2		)	(2		)
Actuarial gain	—			(1		)	—			(2		)
Net benefit cost	$	9		$	3		$	19		$	16