Pension and Other Postretirement Benefits

6 Months Ended

Jun. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits

Pension and Other Postretirement Benefits

Pension and other postretirement benefit costs for the three and six months ended June 30, 2016 and 2015, were as follows:

	Three Months Ended												Six Months Ended
	June 30,												June 30,
	Pension						Other Postretirement Benefits						Pension						Other Postretirement Benefits
In millions	2016			2015			2016			2015			2016			2015			2016			2015
Components of net periodic benefit cost:
Service cost	$	16		$	18		$	3		$	2		$	32		$	36		$	5		$	5
Interest cost	24			23			6			6			47			46			12			12
Expected return on plan assets	(36		)	(38		)	(5		)	(6		)	(73		)	(76		)	(11		)	(12		)
Amortization of actuarial loss	10			15			—			—			21			30			—			—
Amortization of prior service income	—			—			(1		)	—			—			—			(1		)	—
Net periodic benefit cost	$	14		$	18		$	3		$	2		$	27		$	36		$	5		$	5

The Company expects to contribute approximately $73 million to its pension plans and $5 million to its other postretirement plans in 2016. As of June 30, 2016, contributions of $10 million to pension plans and $3 million to other postretirement plans have been made.