Net periodic benefit expense included in our Consolidated Statements of Operations, and other amounts recognized in our Consolidated Statements of Stockholders' Deficit, for the three months ended January 31, 2019 and 2018 are comprised of the following:



	Three Months Ended January 31,
	Pension Benefits						Health and Life Insurance Benefits
(in millions)	2019			2018			2019			2018
Service cost for benefits earned during the period	$	2		$	2		$	1		$	1
Interest on obligation	32			27			12			11
Amortization of cumulative loss	24			26			—			2
Settlements	142			9			—			—
Premiums on pension insurance	1			2			—			—
Expected return on assets	(38		)	(40		)	(5		)	(6		)
Net periodic benefit expense	$	163		$	26		$	8		$	8