Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2011	Oct. 01, 2010	Apr. 02, 2010	Sep. 30, 2011	Oct. 01, 2010
Income taxes
U.S. statutory rate (as a percent)				35.00%
Effective tax rate estimated for 2011 (as a percent)	24.00%			24.00%
Income tax expense	$ 680	$ 633		$ 2,268	$ 1,927
Effective tax rate (as a percent)	23.30%	23.40%		24.60%	24.10%
Tax expense (benefit) associated with unusual and/or infrequent items for the interim periods presented
Asset impairments	0	0		(15)	0
Productivity, integration, restructuring and transaction costs	(25)	(19)		(111)	(59)
Transaction gains	(5)	10		203	10
Certain tax matters	(4)	13		15	42
Other - net	(6)	(1)		(44)	(7)
Impairment of equity method investments	3			41
Other-than-temporary impairment charges, available-for-sale securities			26		26
Effective tax rate, realized gains on sales of available-for-sale securities (as a percent)					0.00%
Primarily productivity, integration and restructuring initiatives	89			372
Charges related to ongoing productivity, integration and restructuring initiatives as well as transaction costs	96	100		457	274
Deconsolidation, Gain (Loss), Amount		23
Sale of Stock, Percentage of Ownership Sold		50.00%
Tax charge related to new legislation changing the tax treatment of Medicare Part D subsidies			14
Uncertain tax positions, tax benefit (charge) net, including interest and penalties					(28)
Our proportionate share of unusual tax charges and transaction costs recorded by equity method investees	36	10		40	55
Charge related to Japan's event, proportionate share of restructuring charges recorded by equity method investees, net gain on repurchase of debt and amortization of favorable supply contracts	42			151
Net Gains From Investee Transactions and Equity Investment Sales				479
Initial remeasurement of net assets in a hyperinflationary economy					103
Effective tax rate on the remeasurement of Venezuelan net assets (as a percent)					0.00%
Costs associated with merger of equity investee and working capital adjustments related to sale of a business	$ 14

The change in the portion of the difference between total income tax expense (benefit) as reported in the Income Statement for the period and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the subsidy for Medicare prescription drug benefits previously received tax-free before enactment of recent legislation.

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Charges recorded into the results related to costs associated with the change in equity investments (i.e investee’s merger and exchange shares) and working capital adjustments from the sale of a business.

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This item represents the effect on the entity's effective tax rate attributable to sales of available-for-sale securities.

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This item represents the effect on the entity's effective tax rate attributable to the remeasurement of the net assets of the Venezuelan subsidiary.

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The entity's best estimate (as of the end a quarter or an specific period) of the effective tax rate expected to be applicable for the full fiscal year, excluding the tax impact of significant unusual or extraordinary items that are separately reported.

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Amount represents the entity's proportionate share of certain gains and (losses) recorded by its equity method investees in the period. These gains and (losses) are the result of material events or transactions that are abnormal or significantly different from typical activities or are not reasonably expected to recur in the foreseeable future; but not both, and therefore does not meet both criteria for classification as an extraordinary item. The entity has recorded its proportionate share of these items as a component of equity income (loss) - net.

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This item represents a decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit allocated to Income or Loss from asset impairment as a result of unusual or infrequent items.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit allocated to other matters not otherwise covered by the existing taxonomy, due to unusual or infrequent items.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit allocated to productivity, integration, restructuring and transaction costs.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit allocated to transaction gain or loss due to unusual or infrequent items.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit allocated to uncertain tax matters due to unusual or infrequent items.

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This Item represent the net gains related to a exchange of securities net of costs associated with it and also includes gain or loss arising from the disposal of an equity method investment.

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Amount represents the initial remeasurement expense associated with the remeasurement of the net assets of a foreign subsidiary that operates in a hyperinflationary economy.

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Percentage of subsidiary's or equity investee's stock sold by the parent company during the period.

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Amount charged against income statement line items in the period for unusual events that are not reasonably expected to recur in the foreseeable future and other charges.

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Amount charged against operating income in the period for material events or transactions that are abnormal or significantly different from typical activities or are not reasonably expect to recur in the foreseeable future and such other transactions.

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The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities.

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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The net amount of all increases and decreases in unrecognized tax benefits for the period.

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