Stockholders' equity (Tables)

3 Months Ended

Mar. 31, 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) income1		(49)		(15)		1		(63)
Balance as of March 31, 2020	$	77	$	(27)	$	(54)	$	(4)