Stockholders' equity (Tables)

6 Months Ended

Jun. 30, 2020

Stockholders' equity

Schedule of changes in the components of accumulated other comprehensive income (loss)

	Foreign Currency Translation Adjustments		Unrecognized (Loss) Gain on Interest Rate Swaps		Loss on Pension and Other Postretirement Plans		Total Accumulated Other Comprehensive Income (Loss)
Balance as of December 31, 2019	$	126	$	(12)	$	(55)	$	59
Other comprehensive (loss) income		(49)		(15)		1		(63)
Balance as of March 31, 2020		77		(27)		(54)		(4)
Other comprehensive income		—		1		—		1
Tax expense		—		(1)		—		(1)
Reclassification of currency translation adjustment to gain on disposal of discontinued operations 1		(78)		(5)		19		(64)
Balance as of June 30, 2020	$	(1)	$	(32)	$	(35)	$	(68)

¹ Relates to the reclassification of foreign currency translation from Accumulated other comprehensive (loss) income to the Gain on disposal of discontinued operations due to the completion of the MDA Transaction. See Note 3 for details.