Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Income Tax Disclosure [Abstract]
Income before taxes: U.S.		$ 11,141	$ 6,957	$ 8,800
Income before taxes: Non-U.S.		9,211	5,979	5,412
Income before taxes		20,352	12,936	14,212
Provision for taxes, Current: Federal		10,207	1,319	2,828
Provision for taxes, Current: State		27	13	40
Provision for taxes, Current: Non-U.S.		899	756	842
Total current provision for taxes		11,133	2,088	3,710
Provision for taxes, Deferred: Federal		(220)	658	(862)
Deferred Other Tax Expense (Benefit)		(162)	(126)	(56)
Total deferred provision for taxes		(382)	532	(918)
Total Provision for taxes		$ 10,751	$ 2,620	$ 2,792
Effective tax rate		52.80%	20.30%	19.60%
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal income tax rate		35.00%	35.00%	35.00%
Increase (reduction) in rate resulting from: Non-U.S. income taxed at different rates		(7.60%)	(11.70%)	(7.90%)
Increase (reduction) in rate resulting from: Research and Development tax credits		(2.30%)	(2.30%)	(1.70%)
Increase (reduction) in rate resulting from: Domestic manufacturing deduction benefit		(1.30%)	(1.40%)	(2.00%)
Increase (reduction) in rate resulting from: Settlements and related measurements		0.00%	(0.10%)	(2.90%)
Effective Income Tax Rate Reconciliation, Transition Tax for Accumulated Foreign Earnings, Percent		26.80%	0.00%	0.00%
Increase (reduction) in rate resulting from: Disposition of Business		3.30%	0.00%	0.00%
Increase (reduction) in rate resulting from: Other		(1.10%)	0.80%	(0.90%)
Income Tax Disclosure [Line Items]
Statutory federal income tax rate		35.00%	35.00%	35.00%
Increase (reduction) in rate resulting from: Non-U.S. income taxed at different rates		(7.60%)	(11.70%)	(7.90%)
Income Tax Holiday, Termination Date		2026
Income Tax Expense (Benefit)		$ 10,751	$ 2,620	$ 2,792
Accrued Income Taxes, Current		1,392	329
Long-term income taxes payable		4,069	125
Income Taxes Receivable, Current		71	86
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred tax assets, Accrued compensation and other benefits		711	1,182
Deferred tax assets, Share-based compensation		241	373
Deferred tax assets, Deferred income		211	596
Deferred tax assets, Inventory		675	1,044
Deferred tax assets, State credits and net operating losses		1,081	846
Deferred tax assets, Other, net		887	1,187
Gross deferred tax assets		3,806	5,228
Deferred tax assets, Valuation allowance		(1,171)	(953)
Total deferred tax assets		2,635	4,275
Deferred tax liabilities, Property, plant and equipment		(943)	(1,574)
Deferred tax liabilities, Licenses and intangibles		(881)	(1,036)
Deferred tax liabilities, Convertible debt		(374)	(1,098)
Deferred Tax Liabilities, Unrealized Gains On Investments And Derivatives		(421)	(940)
Deferred tax liabilities, Investments in non-U.S. subsidiaries		(1,850)	0
Deferred tax liabilities, Other, net		(373)	(450)
Total deferred tax liabilities		(4,842)	(5,098)
Net deferred tax assets (liabilities)		(2,207)	(823)
Non-current deferred tax assets		840	907
Long-term deferred tax liabilities		(3,046)	(1,730)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, Gross, Beginning Balance	$ 211	154	101
Unrecognized tax benefits, Gross, Ending Balance		211	154	101
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		$ 139	87
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities				$ 419
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Dates		Dec. 31, 2036
Valuation Allowance, Amount		$ 1,171	$ 953
Domestic Tax Authority [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Year Which Prior Years' Tax Returns Are No Longer Subject To Tax Examination (date)		Dec. 31, 2004
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards		$ 264
State and Local Jurisdiction [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred tax assets, Valuation allowance		(1,072)
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards		149
Valuation Allowance, Amount		1,072
Non-U.S. [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred tax assets, Valuation allowance		$ (99)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Year Which Prior Years' Tax Returns Are Generally No Longer Subject To Tax Examination (date)		Dec. 31, 2004
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards		$ 431
Operating Loss Carryforwards, Valuation Allowance		249
Valuation Allowance, Amount		99
2017 U.S. Tax Reform [Member]
Income Tax Disclosure [Abstract]
Total Provision for taxes		5,400
Income Tax Disclosure [Line Items]
Income Tax Reconciliation, Transition Tax for Accumulated Foreign Earnings		6,100
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		676
Income Tax Expense (Benefit)		$ 5,400
Scenario, Forecast [Member]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal income tax rate	21.00%
Income Tax Disclosure [Line Items]
Statutory federal income tax rate	21.00%
Minimum [Member]
Income Tax Disclosure [Line Items]
Effective Income Tax Rate Reconciliation, at Foreign Statutory Income Tax Rate, Percent		12.50%
Maximum [Member]
Income Tax Disclosure [Line Items]
Effective Income Tax Rate Reconciliation, at Foreign Statutory Income Tax Rate, Percent		25.00%