Consolidated Statement of Equity (Deficit) - USD ($) $ in Millions		Series A Preferred Stock [Member] Common Stock [Member]	Series A Preferred Stock [Member] Additional Paid-in Capital [Member]	Series A Preferred Stock [Member] Retained Earnings [Member]	Series A Preferred Stock [Member] AOCI Attributable to Parent [Member]	Series A Preferred Stock [Member] Treasury Stock [Member]	Series A Preferred Stock [Member] Preferred Stock [Member]		Series A Preferred Stock [Member]	Series B Preferred Stock [Member] Common Stock [Member]	Series B Preferred Stock [Member] Additional Paid-in Capital [Member]	Series B Preferred Stock [Member] Retained Earnings [Member]	Series B Preferred Stock [Member] AOCI Attributable to Parent [Member]	Series B Preferred Stock [Member] Treasury Stock [Member]	Series B Preferred Stock [Member] Preferred Stock [Member]	[2]	Series B Preferred Stock [Member]	Series C Preferred Stock [Member] Common Stock [Member]	Series C Preferred Stock [Member] Additional Paid-in Capital [Member]	Series C Preferred Stock [Member] Retained Earnings [Member]	Series C Preferred Stock [Member] AOCI Attributable to Parent [Member]	Series C Preferred Stock [Member] Treasury Stock [Member]	Series C Preferred Stock [Member] Preferred Stock [Member]	[2]	Series C Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Preferred Stock [Member]		Total
Balance at Dec. 31, 2019																										$ 0	$ 604	$ (79)	$ (417)	$ (9)	$ 182	[1]	$ 99
Net earnings																										0	0	(541)	0	0	0	[1]	(541)
Currency translation adjustments																										0	0	0	(16)	0	0	[1]	(16)
Pension and other postretirement liability adjustments																										0	0	0	(13)	0	0	[1]	(13)
Preferred stock cash and accrued dividends																										0	(11)	0	0	0	0	[1]	(11)
Preferred stock deemed dividends		$ 0	$ (9)	$ 0	$ 0	$ 0	$ 9	[1]	$ (9)
Stock-based compensation																										0	19	0	0	0	0	[1]	19
Conversion of 2019 Convertible Notes																										0	520	0	0	0	0	[1]	520
Stock option exercises																										0	29	0	0	0	0	[1]	29
Balance at Dec. 31, 2020																										0	1,152	(620)	(446)	(9)	191	[2]	77
Net earnings																										0	0	24	0	0	0	[2]	24
Currency translation adjustments																										0	0	0	6	0	0	[2]	6
Pension and other postretirement liability adjustments																										0	0	0	661	0	0	[2]	661
Repurchase of Series A Preferred Stock		0	0	0	0		(100)	[2]	0
Exchange of Series A Preferred Stock		0	92	0	0	0	(92)	[2]	92
Expiration of Series A embedded derivative		$ 0	$ 11	$ 0	$ 0	$ 0	$ 0	[2]	$ 11
Issuance of convertible, redeemable Series B Preferred Stock, net										$ 0	$ (95)	$ 0	$ 0	$ 0	$ 93		$ (95)
Issuance of stock																										0	10	0	0	0	0	[2]	10
Issuance of convertible, redeemable Series C Preferred Stock, net																		$ 0	$ 0	$ 0	$ 0	$ 0	$ 97		$ 0
Preferred stock cash and accrued dividends																										0	(4)	0	0	0	0	[2]	(4)
Preferred stock in-kind dividends																										0	(4)	0	0	0	4	[2]	(4)
Preferred stock deemed dividends																										0	(3)	0	0	0	3	[2]	(3)
Treasury stock purchases (2)	[3]																									0	0	0	0	(1)	0	[2]	(1)
Stock-based compensation																										0	7	0	0	0	0	[2]	7
Balance at Dec. 31, 2021																										0	1,166	(596)	221	(10)	196	[2]	781
Net earnings																										0	0	26	0	0	0	[2]	26
Currency translation adjustments																										0	0	0	(12)	0	0	[2]	(12)
Pension and other postretirement liability adjustments																										0	0	0	253	0	0	[2]	253
Preferred stock cash and accrued dividends																										0	(4)	0	0	0	0	[2]	(4)
Preferred stock in-kind dividends																										0	(5)	0	0	0	5	[2]	(5)
Preferred stock deemed dividends																										0	(2)	0	0	0	2	[2]	(2)
Treasury stock purchases (2)	[3]																									0	0	0	0	(1)	0	[2]	(1)
Stock-based compensation																										0	5	0	0	0	0	[2]	5
Balance at Dec. 31, 2022																										$ 0	$ 1,160	$ (570)	$ 462	$ (11)	$ 203	[2]	$ 1,041

[1] There are 60 million shares of no-par value preferred stock authorized, 2.1 million of which are issued and outstanding at December 31, 2022. 2.0 million shares of preferred stock were issued and outstanding at December 31, 2021 and 2020.

[2] There are 60 million shares of no-par value preferred stock authorized, 2.1 million of which are issued and outstanding at December 31, 2022. 2.0 million shares of preferred stock were issued and outstanding at December 31, 2021 and 2020.

[3] Represents purchases of common stock to satisfy tax withholding obligations.