Schedule of Quarterly Financial Data (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended																9 Months Ended	12 Months Ended
	Dec. 31, 2016		Sep. 24, 2016		Jun. 25, 2016		Mar. 26, 2016		Dec. 26, 2015		Sep. 26, 2015		Jun. 27, 2015		Mar. 28, 2015		Sep. 24, 2016	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Quarterly Financial Data [Line Items]
Pre-tax Merger, restructuring, and other operating expenses	$ 43		$ 31		$ (193)		$ 40		$ 38		$ 79		$ 96		$ 29			$ 80	$ (242)	$ (334)
Assets impairments	6		9		0		0		3		1		4		5			15	13	56
Termination Fee					250													250
Non-cash income tax benefit	(140)		(240)
Discontinued operations, net of tax	25	[1]	(137)	[1],[2]	(22)	[1]	(16)	[1]	(16)	[3]	(36)	[3]	(27)	[3]	(4)	[3]	$ (175)	(150)	(84)	(59)
Net income (loss)	$ 80	[1]	$ 193	[1],[2]	$ 210	[1]	$ 46	[1]	$ 15	[3],[4]	$ 6	[3],[4]	$ (58)	[3],[4]	$ 45	[3],[4]	$ 449	$ 529	$ 8	$ (354)
Basic earnings (loss) per common share
Discontinued operations	$ 0.05	[1],[5]	$ (0.26)	[1],[2],[5]	$ (0.04)	[1],[5]	$ (0.03)	[1],[5]	$ (0.03)	[3],[5]	$ (0.07)	[3],[5]	$ (0.05)	[3],[5]	$ (0.01)	[3],[5]	$ (0.32)	$ (0.28)	$ (0.15)	$ (0.11)
Net earnings (loss)	0.15	[1],[5]	0.36	[1],[2],[5]	0.38	[1],[5]	0.08	[1],[5]	0.03	[3],[5]	0.01	[3],[5]	(0.11)	[3],[5]	0.08	[3],[5]	0.82	0.98	0.01	(0.66)
Diluted earnings (loss) per share
Discontinued operations	0.05	[1],[5]	(0.25)	[1],[2],[5]	(0.04)	[1],[5]	(0.03)	[1],[5]	(0.03)	[3],[5]	(0.07)	[3],[5]	(0.05)	[3],[5]	(0.01)	[3],[5]	(0.32)	(0.27)	(0.15)	(0.11)
Net earnings (loss)	$ 0.15	[1],[5]	$ 0.35	[1],[2],[5]	$ 0.38	[1],[5]	$ 0.08	[1],[5]	$ 0.03	[3],[5]	$ 0.01	[3],[5]	$ (0.11)	[3],[5]	$ 0.08	[3],[5]	$ 0.81	$ 0.96	$ 0.01	$ (0.66)
As Reported
Quarterly Financial Data [Line Items]
Discontinued operations, net of tax			$ (286)														$ (324)
Net income (loss)			$ 44														$ 300
Basic earnings (loss) per common share
Discontinued operations			$ (0.54)														$ (0.60)
Net earnings (loss)			0.08														0.55
Diluted earnings (loss) per share
Discontinued operations			(0.54)														(0.60)
Net earnings (loss)			$ 0.08														$ 0.54
Adjustment
Quarterly Financial Data [Line Items]
Discontinued operations, net of tax			$ 149														$ 149
Net income (loss)			$ 149														$ 149
Basic earnings (loss) per common share
Discontinued operations			$ 0.28														$ 0.28
Net earnings (loss)			0.28														0.27
Diluted earnings (loss) per share
Discontinued operations			0.29														0.28
Net earnings (loss)			$ 0.27														$ 0.27

[1] Due to rounding, the sum of the quarterly amounts may not equal the reported amounts for the year. The first quarter and second quarter amounts reflect application of discontinued operations accounting that was effective in the third quarter.

[2] The amounts in the table above for the third quarter 2016 are as corrected to adjust for an error that was not material to the overall presentation. When the Company committed to a plan to sell substantially all of the business formerly reported as the International Division, it provided reference to the cumulative translation adjustment ("CTA") balance that existed at the end of the third quarter 2016, but did not include CTA in its impairment analysis. As a result, the loss amount of Discontinued operations, net of tax was overstated. The measurement has been corrected for the full year 2016 amounts. This correcting adjustment is provided below and would impact the same captioned line items in various portions of the third quarter financial statements by the same amount, as well as the current assets of discontinued operations, accumulated deficit and totals including those accounts.

[3] Due to rounding, the sum of the quarterly amounts may not equal the reported amounts for the year. The amounts reflect application of discontinued operations accounting.

[4] In the first, second, third and fourth quarters of 2015, captions include pre-tax Merger, restructuring, and other operating expenses, net totaling $29 million, $96 million, $79 million and $38 million, respectively, and asset impairments of $5 million, $4 million, $1 million and $3 million, respectively.

[5] The sum of the quarterly earnings per share does not equal the annual earnings per share due to differences in quarterly and annual weighted-average shares outstanding.