Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 29, 2015	Mar. 30, 2014
Net earnings	$ 878us-gaap_NetIncomeLoss	$ 933us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of tax
Recognition of previously deferred postretirement benefit plan amounts	212	167
Other, net	(57)	(3)
Other comprehensive income, net of tax	155	164
Comprehensive income	$ 1,033us-gaap_ComprehensiveIncomeNetOfTax	$ 1,097us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans.

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The change in other comprehensive income during the reporting period, net of tax, for an item that is not separately disclosed.

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