PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

PENSION AND OTHER POSTRETIREMENT BENEFITS

Net Periodic Benefit Cost for All Significant Plans	Three Months Ended
In millions	Mar 31, 2017			Mar 31, 2016
Defined Benefit Pension Plans:
Service cost	$	9		$	9
Interest cost	32			33
Expected return on plan assets	(55		)	(54		)
Amortization of net loss	21			19
Net periodic benefit cost	$	7		$	7
Other Postretirement Benefits:
Interest cost	$	2		$	2
Amortization of net gain	(1		)	(2		)
Net periodic benefit cost	$	1		$	—