Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Common Stock	Accumulated Other Comprehensive Loss	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Noncontrolling Interest	Cumulative Effect, Period of Adoption, Adjustment	Total
Balances at Dec. 31, 2018	$ 1	$ (410)		$ 3,770	$ 11		$ 3,372
Comprehensive income (loss):
Net earnings				287			287
Other comprehensive income (loss), net of tax		(30)					(30)
Repurchase of common stock				(17)			(17)
Reduction to noncontrolling interests					(1)		(1)
Dividends on common stock ($9.00/share)				(10)			(10)
Balances at Dec. 31, 2019	1	(440)	$ (3)	4,030	10	$ (3)	3,601
Comprehensive income (loss):
Net earnings				283			283
Other comprehensive income (loss), net of tax		(31)			1		(30)
Repurchase of common stock				(13)			(13)
Dividends on common stock ($9.00/share)				(10)			(10)
Balances at Dec. 31, 2020	1	(471)		4,287	11		3,828
Comprehensive income (loss):
Net earnings				570	1		571
Other comprehensive income (loss), net of tax		39					39
Additions to noncontrolling interest					6		6
Dividends on common stock ($9.00/share)				(10)			(10)
Balances at Dec. 31, 2021	$ 1	$ (432)		$ 4,847	$ 18		$ 4,434