New Accounting Standards New Accounting Standards (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

On January 1, 2018, we adopted ASU No. 2017-07, Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which changed the presentation of net benefit cost related to employer sponsored defined benefit plans and other postretirement benefits. Only service cost can be included within the same income statement line item as other compensation costs arising from services rendered during the period, while other components of net benefit cost must be presented separately outside of operating income. Additionally, only service costs may be capitalized on the balance sheet. Our adoption of this ASU was applied retrospectively for the income statement classification requirements and prospectively for the capitalization guidance, which resulted in net benefit cost previously recognized in cost of sales and selling, general and administrative expenses to be reclassified to other non-operating—net on our consolidated statement of operations for the years ended December 31, 2017 and 2016, as follows:

	Year ended December 31,
	2017								2016
	As Reported			Adjustment			As Adjusted		As Reported			Adjustment			As Adjusted
	(in millions)
Cost of sales	$	3,700		$	(4	)	$	3,696	$	2,845		$	(3	)	$	2,842
Gross margin	430			4			434		840			3			843
Selling, general and administrative expenses	192			(1		)	191		174			(1		)	173
Operating earnings	229			5			234		134			4			138
Other non-operating (income) expense—net	(2		)	5			3		(2		)	4			2