Comprehensive Income/(Loss) (Summary of Reclassifications Out of AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net deferred (gains)/losses on cash flow hedges reclassified to earnings	$ (86)	$ (2)	$ (84)	$ (5)
Income Tax Expense (Benefit)	(35)	34	33	85
Net (loss)/income	(160)	135	119	333
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			0
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			(7)
Amortization of unrecognized gains/(losses)	(1)	0	(2)	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	2	2	3	3
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	(11)	0	(11)	0
Gain/(Loss) From Continuing Operations Before Income Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	223	(3)	222	(9)
Gain/(Loss) From Continuing Operations Before Income Tax | Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(10)	2	(10)	3
Provision for Income Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net deferred (gains)/losses on cash flow hedges reclassified to earnings	86	(2)	84	(5)
Provision for Income Tax | Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income Tax Expense (Benefit)	2	(1)	3	(1)
Gain/(Loss) From Continuing Operations, Net of Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(137)	1	(138)	4
Gain/(Loss) From Continuing Operations, Net of Tax | Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (loss)/income	(8)	1	(7)	2
Foreign exchange contracts | Sales | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	1	1	2	1
Foreign exchange contracts | Cost of sales | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	11	4	16	9
Foreign exchange contracts | Other income/(expense), net | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			1	1
Interest rate contracts | Interest expense | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	$ 233	$ 0	$ 237	$ 0