Goodwill and Intangible Assets Goodwill - Additional Information (Details) $ in Millions		3 Months Ended
	Mar. 31, 2019 USD ($) goodwill_reporting_unit	Mar. 28, 2020 USD ($) goodwill_reporting_unit segment	Dec. 28, 2019 USD ($) goodwill_reporting_unit	Mar. 30, 2019 USD ($) goodwill_reporting_unit	Dec. 29, 2019 USD ($) employee
Goodwill [Line Items]
Number of reportable segments | segment		3
Number of reporting units | goodwill_reporting_unit		15
Impairment losses		$ 226		$ 620
Goodwill		35,062	$ 35,546
Goodwill, impaired, accumulated impairment loss		(8,400)
International
Goodwill [Line Items]
Change in goodwill allocation, carrying amount			(46)
Impairment losses		226		$ 620
Goodwill		3,035	3,355
Number of reporting units requiring impairment | employee					2
United States
Goodwill [Line Items]
Change in goodwill allocation, carrying amount			46
Impairment losses		0
Goodwill		$ 29,647	29,647
Reporting unit, goodwill balance held
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		10
Reporting unit, fair value below carrying amount
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit				3
Impairment losses		$ 226
Latin America Exports | Rest of World
Goodwill [Line Items]
Impairment losses				$ 129
Goodwill			$ 195
Northern Europe and Benelux | EMEA | Minimum
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					20.00%
Northern Europe and Benelux | EMEA | Maximum
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					50.00%
Greater China | Rest of World
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					50.00%
Australia, New Zealand, and Japan | International
Goodwill [Line Items]
Impairment losses		83
Latin America | International
Goodwill [Line Items]
Impairment losses		$ 143
Northern Europe | International | Minimum
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					20.00%
Northern Europe | International | Maximum
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					50.00%
EMEA East | EMEA
Goodwill [Line Items]
Impairment losses				286
Brazil | Rest of World
Goodwill [Line Items]
Impairment losses				$ 205
Puerto Rico | United States
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					10.00%
Asia | International
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount					50.00%
Northern Europe and Continental Europe
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		2
Pre-reorganization, number of reporting units with reassignment of assets and liabilities
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		5
Latin America Exports and Northeast Asia
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit			2
Northern Europe and Benelux, Continental Europe, and Greater China
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		3
Post-reorganization impairment test [Member]
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		6
Seven Reporting Units
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		10.00%
One Reporting Unit | Minimum
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		20.00%
One Reporting Unit | Maximum
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		50.00%
Two Reporting Units
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		50.00%
10% or less | Reporting unit, goodwill balance held
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		7
10% or less | Puerto Rico | United States
Goodwill [Line Items]
Goodwill					$ 58
10% or less | U.S. Foodservice and Canada Foodservice
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit	2
Goodwill	$ 4,300
10 to 20% | Northeast Asia | Rest of World
Goodwill [Line Items]
Goodwill			$ 83
20 to 50% | Reporting unit, goodwill balance held
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		1
20 to 50% | Northern Europe and Benelux | EMEA
Goodwill [Line Items]
Goodwill					2,100
20 to 50% | Northern Europe | International
Goodwill [Line Items]
Goodwill					1,700
In Excess of 50% | Reporting unit, goodwill balance held
Goodwill [Line Items]
Number of reporting units | goodwill_reporting_unit		2
In Excess of 50% | Continental Europe | International
Goodwill [Line Items]
Goodwill					920
In Excess of 50% | Continental Europe | EMEA
Goodwill [Line Items]
Goodwill					567
In Excess of 50% | Greater China | Rest of World
Goodwill [Line Items]
Goodwill					321
In Excess of 50% | Asia | International
Goodwill [Line Items]
Goodwill					$ 321