Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Changes in Issued and Treasury shares

Changes in our ordinary shares issued were as follows:

(Shares in millions)	Issued
Balance at December 31, 2017 (Predecessor)	993
Equity Awards Granted, Vested and Exercised	9
Balance at December 31, 2018 (Predecessor)	1,002
Equity Awards Granted, Vested and Exercised	7
Predecessor Shares Cancellation	(1,009	)
Balance at December 13, 2019 (Predecessor)	—
Share Issuance	70
Balance at December 13, 2019 (Successor)	70
Share Issuance	—
Balance at December 31, 2019 (Successor)	70

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in our accumulated other comprehensive loss by component:

(Dollars in millions)	Currency Translation Adjustment			Defined Benefit Pension			Deferred Loss on Derivatives			Total
Balance at December 31, 2017 (Predecessor)	$	(1,484	)	$	(26	)	$	(9	)	$	(1,519	)
Other Comprehensive (Loss) Income before Reclassifications	(240		)	10			—			(230		)
Reclassifications	—			2			1			3
Net Activity	(240		)	12			1			(227		)
Balance at December 31, 2018 (Predecessor)	(1,724		)	(14		)	(8		)	(1,746		)
Other Comprehensive Income (Loss) before Reclassifications	52			(12		)	—			40
Reclassifications	—			1			8			9
Net Activity	52			(11		)	8			49
Balance at December 13, 2019 (Predecessor)	(1,672		)	(25		)	—			(1,697		)
Elimination of Predecessor Equity Balances	1,672			25			—			1,697
Balance at December 13, 2019 (Successor)	—			—			—			—
Other Comprehensive Income	7			2			—			9
Balance at December 31, 2019 (Successor)	$	7		$	2		$	—		$	9