Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Common Stock	Accumulated Other Comprehensive Loss	Retained Earnings	Noncontrolling Interest	Total
Balances at Dec. 31, 2018	$ 1	$ (410)	$ 3,727	$ 11	$ 3,329
Increase (Decrease) in Stockholders' Equity
Reduction to noncontrolling interests				(1)	(1)
Comprehensive income (loss):
Net earnings (loss)			57		57
Other comprehensive income (loss), net of tax		1			1
Repurchase of common stock			(13)		(13)
Dividends on common stock			(3)		(3)
Balances at Mar. 30, 2019	1	(409)	3,768	10	3,370
Balances at Dec. 31, 2018	1	(410)	3,727	11	3,329
Comprehensive income (loss):
Net earnings (loss)					115
Other comprehensive income (loss), net of tax					(5)
Balances at Jun. 29, 2019	1	(415)	3,823	10	3,419
Balances at Mar. 30, 2019	1	(409)	3,768	10	3,370
Comprehensive income (loss):
Net earnings (loss)			58		58
Other comprehensive income (loss), net of tax		(6)			(6)
Repurchase of common stock			(1)		(1)
Dividends on common stock			(2)		(2)
Balances at Jun. 29, 2019	1	(415)	3,823	10	3,419
Balances at Dec. 31, 2019	1	(440)	3,983	10	3,554
Comprehensive income (loss):
Net earnings (loss)			(103)		(103)
Other comprehensive income (loss), net of tax		5			5
Repurchase of common stock			(13)		(13)
Dividends on common stock			(3)		(3)
Balances at Mar. 28, 2020	1	(435)	3,861	10	3,437
Balances at Dec. 31, 2019	1	(440)	3,983	10	3,554
Comprehensive income (loss):
Net earnings (loss)					(129)
Other comprehensive income (loss), net of tax					(14)
Balances at Jun. 27, 2020	1	(454)	3,833	10	3,390
Increase (Decrease) in Stockholders' Equity
Adoption of accounting guidance			(3)		(3)
Balances at Mar. 28, 2020	1	(435)	3,861	10	3,437
Comprehensive income (loss):
Net earnings (loss)			(26)		(26)
Other comprehensive income (loss), net of tax		(19)			(19)
Dividends on common stock			(2)		(2)
Balances at Jun. 27, 2020	$ 1	$ (454)	$ 3,833	$ 10	$ 3,390