Accumulated Other Comprehensive (Loss) Income (AOCI), Summary of Amounts Reclassified from AOCI into Net Income (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 29, 2017	Sep. 23, 2016	Sep. 29, 2017	Sep. 23, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales-products		$ (1,446)	$ (1,355)	$ (4,311)	$ (4,095)
Income from continuing operations before income taxes		26	180	515	599
Provision for income taxes		0	(29)	(114)	(130)
Income from continuing operations		26	151	401	469
Amount Reclassified from AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations	[1]	(7)	(12)	(25)	(32)
Gain (loss) on Hedging Instruments [Member] | Amount Reclassified from AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales-products	[1]	2	(4)	3	(8)
Income from continuing operations before income taxes	[1]	2	(4)	3	(8)
Provision for income taxes	[1]	(1)	0	(1)	0
Income from continuing operations	[1]	1	(4)	2	(8)
Amortization of Defined Benefit Pension and Postretirement Items [Member] | Amount Reclassified from AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net loss	[1],[2]	(13)	(12)	(43)	(37)
Income from continuing operations before income taxes	[1]	(13)	(12)	(43)	(37)
Provision for income taxes	[1]	5	4	16	13
Income from continuing operations	[1]	$ (8)	$ (8)	$ (27)	$ (24)

[1] Amounts in parenthesis indicate charges to the unaudited condensed consolidated statements of operations.

[2] Amounts related to pension and postretirement benefit plans were reclassified from AOCI and recorded as a component of net periodic benefit cost (see Note 19 for additional information).