Stockholders' Equity Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Attributable to Parent [Abstract]

Schedule of Stockholders Equity

Changes in common shares outstanding are as follows:

	Year ended December 31,
	2020	2019	2018
Beginning balance	216,023,826	222,818,495	233,287,089
Exercise of stock options	321,465	629,186	462,647
Issuance of restricted stock(1)	552,362	267,165	68,803
Purchase of treasury shares(2)	(2,942,795)	(7,691,020)	(11,000,044)
Ending balance	213,954,858	216,023,826	222,818,495

_______________________________________________________________________________

(1)Includes shares issued from treasury.

(2)Includes shares withheld to pay employee tax obligations upon the vesting of restricted stock or the exercise of stock options.

Schedule of Accumulated Other Comprehensive Income (Loss)

Changes to accumulated other comprehensive loss and the impact on other comprehensive income (loss) are as follows:

	Foreign Currency Translation Adjustment		Unrealized Gain (Loss) on Securities		Unrealized Gain (Loss) on Derivatives		Defined Benefit Plans		Accumulated Other Comprehensive Loss
	(in millions)
Balance as of December 31, 2017	$	(145)	$	1	$	4	$	(123)	$	(263)
Adoption of ASU 2016-01(1)	—		(1)		—		—		(1)
Adoption of ASU 2018-02(2)	—		—		1		(11)		(10)
Gain arising during the period	—		—		—		3		3
Reclassification to earnings(3)	—		—		—		2		2
Effect of exchange rate changes and deferred taxes	(105)		—		—		3		(102)
Balance as of December 31, 2018	(250)		—		5		(126)		(371)
Loss arising during the period	—		—		—		(62)		(62)
Reclassification to earnings(3)	—		—		—		(2)		(2)
Effect of exchange rate changes and deferred taxes	62		—		—		7		69
Balance as of December 31, 2019	(188)		—		5		(183)		(366)
Gain arising during the period	—		—		—		1		1
Reclassification to earnings(3)	—		—		(1)		6		5
Effect of exchange rate changes and deferred taxes	44		—		—		(4)		40
Balance as of December 31, 2020	$	(144)	$	—	$	4	$	(180)	$	(320)

_______________________________________________________________________________

(1)     On January 1, 2018, we adopted ASU No. 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which changes the income statement impact of equity investments held by an entity. The amendments require the unrealized gains or losses of equity instruments measured at fair value to be recognized in net earnings. Our adoption of this ASU resulted in an increase to opening retained earnings of $1 million representing the cumulative effect of unrealized gains from equity securities from accumulated other comprehensive loss.

(2)     In the fourth quarter of 2018, we adopted ASU No. 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU allowed a reclassification from accumulated other comprehensive income (loss) to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. As a result of our adoption of this ASU, we reclassified $10 million of stranded tax effects previously recognized in accumulated other comprehensive loss to retained earnings during the fourth quarter of 2018.

(3)     Reclassifications out of accumulated other comprehensive loss to the consolidated statements of operations were not material.