Accumulated Other Comprehensive Loss and Other Comprehensive Income (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Pension and postretirement benefits adjustments, Pre-Tax:
Amortization of net actuarial loss included in net periodic pension cost, pre-tax	$ 48	$ 31	$ 143	$ 93
Amortization of prior service cost included in net periodic pension cost, pre-tax	(2)	1		3
Amendment to postretirement benefit plan, pre-tax	55		55
Pension and postretirement benefits adjustments, net, Pre-Tax	101	32	198	96
Deferred gains/losses on hedge contracts, pre-tax:
Current deferrals, pre-tax	3	12	(11)	19
Reclassification adjustments included in net income, pre-tax			(3)	(12)
Deferred gains/losses on hedge contracts, net, pre-tax	3	12	(14)	7
Foreign currency translation adjustments, pre-tax	8	1	6	(9)
Other comprehensive income (loss), pre-tax	112	45	190	94
Pension and postretirement benefits adjustments, tax (Expense) Benefit:
Amortization of net actuarial loss included in net periodic pension cost, tax	(18)	(10)	(51)	(32)
Amortization of prior service cost included in net periodic pension cost, tax	1	(1)		(1)
Amendment to postretirement benefit plan, tax	(20)		(20)
Pension and postretirement benefits adjustments, net, tax	(37)	(11)	(71)	(33)
Deferred gains/losses on hedge contracts, tax:
Current deferrals, tax	(1)	(3)	2	(4)
Reclassification adjustments included in net income, tax		(1)	1	2
Deferred gains/losses on hedge contracts, net, tax	(1)	(4)	3	(2)
Foreign currency translation adjustments, Tax	4	7	(3)	4
Other comprehensive income (loss), Tax	(34)	(8)	(71)	(31)
Pension and postretirement benefits adjustments, After Tax:
Amortization of net actuarial loss included in net periodic pension cost, after tax	30	21	92	61
Amortization of prior service cost included in net periodic pension cost, after tax	(1)			2
Amendment to postretirement benefit plan, after tax	35		35
Pension and postretirement benefits adjustments net, After-Tax	64	21	127	63
Deferred gains/losses on hedge contracts, after tax:
Current deferrals, after tax	2	9	(9)	15
Reclassification adjustments included in net income, after tax		(1)	(2)	(10)
Deferred gains/losses on hedge contracts, net, after tax	2	8	(11)	5
Foreign currency translation adjustments, after Tax	12	8	3	(5)
Other comprehensive income	$ 78	$ 37	$ 119	$ 63