Reportable Segments (Details) $ in Millions		3 Months Ended				9 Months Ended
	Jul. 28, 2019 USD ($)	Sep. 28, 2019 USD ($)		Sep. 29, 2018 USD ($)		Sep. 28, 2019 USD ($)		Sep. 29, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments						4
Net sales		$ 3,372		$ 3,469		$ 10,355		$ 10,230
Operating profit		263		396		1,041		1,380
Pre tax charge multi-employer pension plan withdrawal						132		0
Cash proceeds from sale of businesses						1,332		0
North America
Segment Reporting Information [Line Items]
Pre tax charge multi-employer pension plan withdrawal		132
AMEA
Segment Reporting Information [Line Items]
Indirect excise tax liability reversal		13
Europe transfer to AMEA
Segment Reporting Information [Line Items]
Net sales				65				194
Operating profit				11				35
Operating Segments
Segment Reporting Information [Line Items]
Operating profit		352		467		1,280		1,519
Operating Segments | North America
Segment Reporting Information [Line Items]
Net sales		2,059		2,188		6,496		6,645
Operating profit		208	[1]	330	[2]	910	[1]	1,114	[2]
Research and development expense				12				36
Operating Segments | Europe
Segment Reporting Information [Line Items]
Net sales		527		531		1,566		1,610
Operating profit		68		63		164		210
Operating Segments | Latin America
Segment Reporting Information [Line Items]
Net sales		244		239		707		710
Operating profit		23		28		61		70
Operating Segments | AMEA
Segment Reporting Information [Line Items]
Net sales		542		511		1,586		1,265
Operating profit		53	[3]	46		145	[3]	125
Corporate
Segment Reporting Information [Line Items]
Operating profit		$ (89)	[2]	$ (71)		$ (239)	[2]	$ (139)
Cookies, fruit and fruit-flavored snacks, pie crusts and ice cream cones businesses
Segment Reporting Information [Line Items]
Cash proceeds from sale of businesses	$ 1,300
Net assets	$ 1,300

[1] During the third quarter of 2019, North America operating profit includes the recognition of multi-employer pension plan exit liabilities totaling $132 million.

[2] Corporate operating profit in 2019 includes the cost of certain global research and development activities that were previously included in the North America reportable segment in 2018 that totaled approximately $12 million and $36 million for the quarter and year-to-date periods, respectively.

[3] During the third quarter of 2019, AMEA operating profit includes the $13 million reversal of indirect excise tax liabilities largely the result of participating in a tax amnesty program.