Income Taxes (Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Income Tax Contingency [Line Items]
Income before income taxes in U.S	$ 2,630	$ 2,879	$ 2,557
Income before income taxes in Foreign	5,923	4,563	6,200
Income before income taxes	8,553	7,442	8,757
Provision for income taxes
Current: U.S. Federal	1,219	1,143	1,364
Current: Foreign	824	773	851
Current: State	77	65	210
Provision for income taxes, Current total	2,120	1,981	2,425
Deferred: U.S. Federal	109	(14)	(33)
Deferred: Foreign	(33)	(32)	(60)
Deferred: State	(22)	6	(133)
Provision for income taxes, Deferred total	54	(40)	(226)
Provision for income taxes	$ 2,174	$ 1,941	$ 2,199
U.S. Federal statutory tax rate
U.S. Federal statutory tax rate	35.00%	35.00%	35.00%
State income tax, net of U.S. Federal tax benefit	0.40%	0.60%	0.60%
Lower taxes on foreign results	(8.00%)	(10.50%)	(8.60%)
Impact of Venezuela impairment charges	0.00%	6.40%	0.00%
Tax benefits	0.00%	(3.10%)	0.00%
Other, net	(2.00%)	(2.30%)	(1.90%)
Annual tax rate	25.40%	26.10%	25.10%
Deferred tax liabilities
Debt guarantee of wholly-owned subsidiary				$ 839	$ 842
Property, plant and equipment				1,967	2,023
Intangible assets other than nondeductible goodwill				4,124	3,920
Other				245	299
Gross deferred tax liabilities				7,175	7,084
Deferred tax assets
Net carryforwards				1,255	1,279
Share-based compensation				219	240
Retiree medical benefits				316	343
Other employee-related benefits				614	547
Pension benefits				419	424
Deductible state tax and interest benefits				189	186
Other				839	933
Gross deferred tax assets				3,851	3,952
Valuation allowances	$ (1,136)	$ (1,230)	$ (1,360)	(1,110)	(1,136)	$ (1,230)
Deferred tax assets, net				2,741	2,816
Net deferred tax liabilities				4,434	4,268
Prepaid expenses and other current assets				1,547	1,865
Deferred income taxes				5,073	4,959
Valuation Allowance [Abstract]
Balance, beginning of year	(1,136)	(1,230)	(1,360)
Provision/(Benefit)				13	(26)	$ (25)
Other deductions	(39)	(68)	(105)
Balance, end of year	(1,110)	$ (1,136)	$ (1,230)
Deferred Taxes
Deferred tax assets
Prepaid expenses and other current assets				$ 639	$ 691
Tax Settlement, Years 2010-2011 [Member]
Income Tax Contingency [Line Items]
non cash tax benefit	$ 230