Schedule of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Sep. 26, 2020	Sep. 28, 2019
Numerator:
Income (loss) from continuing operations	$ 8			$ 105			$ (216)	$ 292
Income from discontinued operations	0			1			0	1
Net income (loss)	8	$ (92)	$ (132)	106	$ 116	$ 71	(216)	293
Series A Convertible Preferred Stock Dividends	10			0			15	0
Net (loss) income available to common shareholders	$ (2)			$ 106			$ (231)	$ 293
Denominator:
Weighted-average common shares outstanding	220			218			220	218
Effect of dilutive securities	0			2			0	1
Effect of dilutive underlying shares of the Series A Convertible Preferred Stock	0			0			0	0
Weighted-average dilutive shares outstanding	220			220			220	219
Continuing operations	$ (0.01)			$ 0.48			$ (1.05)	$ 1.33
Discontinued operations	0.00			0.01			0.00	0.01
Net (loss) income per share	(0.01)			0.49			(1.05)	1.34
Continuing operations	(0.01)			0.47			(1.05)	1.33
Discontinued operations	0.00			0.01			0.00	0.01
Net (loss) income per share	$ (0.01)			$ 0.48			$ (1.05)	$ 1.34