Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Components of Net Periodic Benefit Cost

The Company’s net periodic benefit cost includes the following components for the three months ended March 31 (in millions):

	Pension Benefits				Other Postretirement Benefits				Affected Line Item in the Statements of Consolidated Operations
	2018		2017		2018		2017
Service cost	$	57	$	49	$	3	$	2		Salaries and related costs
Interest cost		54		55		15		17		Miscellaneous, net
Expected return on plan assets		(73)		(60)		—		—		Miscellaneous, net
Amortization of unrecognized (gain) loss and prior service cost (credit)		33		31		(17)		(18)		Miscellaneous, net
Settlement loss		—		1		—		—		Miscellaneous, net
Total	$	71	$	76	$	1	$	1

Share-Based Compensation Expense

The table below presents information related to share-based compensation (in millions):

	Three Months Ended March 31,
	2018		2017
Share-based compensation expense	$	17	$	23
	March 31, 2018		December 31, 2017
Unrecognized share-based compensation	$	102	$	53