Pension Plans and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost Table

The following summarizes the Company’s pension and other postretirement benefit cost:

	Pension Benefits							Other Benefits
millions		2019			2018				2019			2018
Three Months Ended March 31
Service cost		$	22		$	23			$	—		$	—
Interest cost		20			19				3			3
Expected (return) loss on plan assets		(21		)	(21		)		—			—
Amortization of net actuarial loss (gain)		4			7				—			—
Amortization of net prior service cost (credit)		—			—				(1		)	(6		)
Settlement expense		4			—				—			—
Net periodic benefit cost (1)		$	29		$	28			$	2		$	(3	)

⁽¹⁾  The service cost component of net periodic benefit cost is included in G&A; oil and gas operating expense; gathering, processing, and marketing expense; and exploration expense, and all other components of net periodic benefit cost are included in other (income) expense on the Company’s Consolidated Statements of Income.