Shareholders' Equity (Details 2) - USD ($) $ in Millions	3 Months Ended
	Mar. 19, 2016	Mar. 21, 2015
Schedule of changes in accumulated comprehensive income [Line Items]
Beginning Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (239)
Other comprehensive income (loss), net of tax	(61)	$ (82)
Ending Accumulated Other Comprehensive Income (Loss), Net of Tax	(300)
Translation Adjustments and Gains (Losses) From Intra-Entity Transactions of a Long-Term Nature
Schedule of changes in accumulated comprehensive income [Line Items]
Beginning Accumulated Other Comprehensive Income (Loss), Net of Tax	(109)
Gains (losses) arising during the year classified into accumulated OCI, net of tax	(68)
(Gains) losses reclassified from accumulated OCI, net of tax	0
Other comprehensive income (loss), net of tax	(68)
Ending Accumulated Other Comprehensive Income (Loss), Net of Tax	(177)
Pension and Post-Retirement Benefits
Schedule of changes in accumulated comprehensive income [Line Items]
Beginning Accumulated Other Comprehensive Income (Loss), Net of Tax	(113)
Gains (losses) arising during the year classified into accumulated OCI, net of tax	1
(Gains) losses reclassified from accumulated OCI, net of tax	2
Other comprehensive income (loss), net of tax	3
Ending Accumulated Other Comprehensive Income (Loss), Net of Tax	(110)
Derivative Instruments
Schedule of changes in accumulated comprehensive income [Line Items]
Beginning Accumulated Other Comprehensive Income (Loss), Net of Tax	(17)
Gains (losses) arising during the year classified into accumulated OCI, net of tax	(6)
(Gains) losses reclassified from accumulated OCI, net of tax	10
Other comprehensive income (loss), net of tax	4
Ending Accumulated Other Comprehensive Income (Loss), Net of Tax	(13)
Total
Schedule of changes in accumulated comprehensive income [Line Items]
Beginning Accumulated Other Comprehensive Income (Loss), Net of Tax	(239)
Gains (losses) arising during the year classified into accumulated OCI, net of tax	(73)
(Gains) losses reclassified from accumulated OCI, net of tax	12
Other comprehensive income (loss), net of tax	(61)
Ending Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (300)