Acquisitions and Divestitures - Narrative (Details) £ in Millions, $ in Millions, $ in Millions, € in Billions											3 Months Ended
	Apr. 24, 2022 USD ($)	Jan. 03, 2022 USD ($)	Jan. 03, 2022 EUR (€)	Nov. 01, 2021 USD ($)	Nov. 01, 2021 AUD ($)	Apr. 01, 2021 USD ($)	Apr. 01, 2021 AUD ($)	Mar. 25, 2021 USD ($)	Mar. 25, 2021 GBP (£)	Jan. 04, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Acquisition-related costs											$ 21	$ 7
Goodwill											22,618		$ 21,978
Net Cash Paid											1,418	490
Pre-tax gain to step up investment to fair value and consolidate the company											0	9
Disposal Group, Disposed of by Sale, Not Discontinued Operations | MaxFoods Pty Ltd.
Business Acquisition [Line Items]
Proceeds from divestiture of businesses, net of cash divested				$ 41	$ 57
Ricolino | Subsequent Event
Business Acquisition [Line Items]
Business combination price of acquisition expected	$ 1,300
Chipita, S.A.
Business Acquisition [Line Items]
Closing cash consideration		$ 1,400	€ 1.3
Liabilities assumed		436	0.4
Purchase price		1,906	€ 1.7
Incremental net revenues from acquisition											152
Incremental operating income (loss) from acquisition											4
Acquisition-related costs											21
Acquisition integration costs											35
Definite life intangible assets		48
Goodwill		774
Property, plant and equipment		406
Inventory acquired		62
Accounts receivables		102
Other assets		79
Other current assets acquired		4
Current liabilities assumed		131
Net Cash Paid		1,418
Deferred tax liabilities assumed		155
Long-term other liabilities		21
Chipita, S.A. | Trade Names
Business Acquisition [Line Items]
Indefinite life intangible assets		$ 686
Gourmet Food
Business Acquisition [Line Items]
Closing cash consideration						$ 343	$ 450
Indefinite life intangible assets						41
Incremental net revenues from acquisition											14
Incremental operating income (loss) from acquisition											1
Acquisition-related costs												1
Definite life intangible assets						80
Goodwill						164
Property, plant and equipment						19
Inventory acquired						18
Accounts receivables						25
Other assets						12
Operating lease, right-of-use asset acquired						5
Other current assets acquired						3
Current liabilities assumed						19
Noncurrent operating lease liability assumed						$ 5
Grenade
Business Acquisition [Line Items]
Indefinite life intangible assets								$ 82
Incremental net revenues from acquisition											21
Incremental operating income (loss) from acquisition											$ 2
Acquisition-related costs												2
Definite life intangible assets								28
Goodwill								181
Property, plant and equipment								1
Inventory acquired								11
Accounts receivables								18
Current liabilities assumed								25
Net Cash Paid								261	£ 188
Deferred tax liabilities assumed								20
Long-term other liabilities								$ 15
Hu
Business Acquisition [Line Items]
Indefinite life intangible assets										$ 123
Acquisition-related costs												$ 4
Definite life intangible assets										51
Goodwill										202
Property, plant and equipment										1
Inventory acquired										2
Accounts receivables										4
Current liabilities assumed										5
Net Cash Paid										229
Long-term other liabilities										$ 132
Percentage of interest acquired										93.00%
Fair value of contingent consideration obligation										$ 132
Pre-tax gain to step up investment to fair value and consolidate the company										9
After-tax gain to step up investment to fair value and consolidate the company										7
Amount of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination										$ 8
Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination										7.00%