Accumulated Other Comprehensive Loss and Other Comprehensive Income (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Pension and postretirement benefits adjustments, Pre-Tax:
Amortization of net actuarial loss included in net periodic pension cost, pre-tax	$ 29	$ 48
Amortization of prior service cost included in net periodic pension cost, pre-tax	(2)	1
Pension and postretirement benefits adjustments, net, Pre-Tax	27	49
Deferred gains/losses on hedge contracts, pre-tax:
Current deferrals, pre-tax	(11)	(6)
Reclassification adjustments included in net income, pre-tax	2	(2)
Deferred gains/losses on hedge contracts, net, pre-tax	(9)	(8)
Foreign currency translation adjustments, pre-tax	(7)	(2)
Other comprehensive income, pre-tax	11	39
Pension and postretirement benefits adjustments, tax (Expense) Benefit:
Amortization of net actuarial loss included in net periodic pension cost, tax	(10)	(17)
Amortization of prior service cost included in net periodic pension cost, tax	1
Pension and postretirement benefits adjustments, net, tax	(9)	(17)
Deferred gains/losses on hedge contracts, tax:
Current deferrals, tax	2	1
Deferred gains/losses on hedge contracts, net, tax	2	1
Foreign currency translation adjustments, Tax	1	(8)
Other comprehensive income, Tax	(6)	(24)
Pension and postretirement benefits adjustments, After Tax:
Amortization of net actuarial loss included in net periodic pension cost, after tax	19	31
Amortization of prior service cost included in net periodic pension cost, after tax	(1)	1
Pension and postretirement benefits adjustments net, After-Tax	18	32
Deferred gains/losses on hedge contracts, after tax:
Current deferrals, after tax	(9)	(5)
Reclassification adjustments included in net income, after tax	2	(2)
Deferred gains/losses on hedge contracts, net, after tax	(7)	(7)
Foreign currency translation adjustments, after Tax	(6)	(10)
Other comprehensive income	$ 5	$ 15