Statement of Changes in Combined Equity - USD ($) shares in Thousands, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Parent Company net investment	Parent Company net investment Cumulative Effect, Period of Adoption, Adjustment	Common stock	Additional capital	Accumulated deficit	Accumulated other comprehensive income (loss)	Noncontrolling interest
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 2,677		$ 2,415					$ 250	$ 12
Net income (loss)	46		46						0
Other comprehensive income (J)	14							14	0
Change in ParentCo contribution	27		27
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,821		2,502					307	12
Net income (loss)	5		5						0
Other comprehensive income (J)	(43)							(43)	0
Change in ParentCo contribution	54		54
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,837		2,561					264	12
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,728	$ 73	2,419	$ 73				295	14
Net income (loss)	(32)		60				$ (92)		0
Other comprehensive income (J)	59							59	0
Separation payment to former parent company (A)	(728)		(728)
Separation-related adjustments (A)	314		(2,317)			$ 3,081		(450)
Issuance of common stock					(1,000)	(1,000)
Stock-based compensation	5					$ 5
Change in ParentCo contribution	217		217
Stockholders' Equity, Establishment of Defined Benefit Plans	(1,403)		349					(1,752)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,626		3,045					(1,432)	13
Net income (loss)	(92)		0				(92)		0
Other comprehensive income (J)	34							34	0
Separation payment to former parent company (A)	728		728
Separation-related adjustments (A)	314		(2,317)			$ 3,081		(450)
Issuance of common stock					(1,000)	(1,000)
Stock-based compensation	5					$ 5
Stockholders' Equity, Other	(1)								(1)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,160		$ 0		$ 1	$ 3,085	$ (92)	$ (1,848)	$ 14