Equity Method Investments - Narrative (Details) € / shares in Units, $ in Millions														3 Months Ended		12 Months Ended
		Sep. 20, 2021 EUR (€) € / shares shares	Aug. 02, 2021 USD ($) shares	Jun. 07, 2021 USD ($) shares	Nov. 17, 2020 USD ($) shares	Sep. 09, 2020 USD ($) shares	Aug. 03, 2020 USD ($) shares	Jun. 02, 2020 USD ($) shares	Jun. 02, 2020 EUR (€) shares	Jun. 01, 2020 USD ($) shares	Jun. 01, 2020 EUR (€) shares	May 29, 2020 € / shares shares	Mar. 04, 2020 USD ($) shares	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) director	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2021 EUR (€) director	Dec. 31, 2018	Mar. 08, 2016	Mar. 07, 2016
Schedule of Equity Method Investments [Line Items]
Equity method investments	[1]															$ 5,289	$ 6,036
Equity method investment net earnings																393	421	$ 501
Cash dividends received from equity method investments																172	246	250
Pre-tax gain (loss) on equity method investment transaction																$ 742	989	$ (2)
Exchangeable Notes | 0.000% Notes Due September 2024
Schedule of Equity Method Investments [Line Items]
Debt issued | €		€ 300,000,000																		€ 300,000,000
Exchange price (in EUR per share) | € / shares		€ 35.40
Debt convertible into equity interest, shares issuable (in shares) | shares		8,500,000
Debt convertible into equity interest, percentage		0.07
JDEP
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest								22.90%	22.90%							22.80%				22.80%
Number of shares of equity method investment sold (in shares) | shares										9,700,000	9,700,000	82,100,000
Stock sale price (in EUR per share) | € / shares												€ 31.50
Percentage of equity method investment ownership after the settlement										26.50%	26.50%
Gross proceeds from equity method investment transaction										$ 343	€ 304,000,000
JDEP | Over-allotment option
Schedule of Equity Method Investments [Line Items]
Pre-tax gain (loss) on equity method investment transaction														$ 10	$ 121		$ 131
Number of shares of equity method investment sold (in shares) | shares								1,400,000	1,400,000
Gross proceeds from equity method investment transaction								$ 51	€ 46,000,000
Losses/(gains) reclassified into net earnings															33
Equity method investment transaction costs															$ 48
KDP
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest			5.30%	6.40%	8.40%	11.20%	12.10%						13.10%				13.60%				13.80%
Number of shares of equity method investment sold (in shares) | shares			14,700,000	28,000,000.0	40,000,000	12,500,000	14,100,000						6,800,000
Decrease in equity method investment ownership percentage			1.00%	2.00%	2.80%	0.90%	1.00%						0.50%
Proceeds from sale of equity method investment			$ 500	$ 997	$ 1,132	$ 363	$ 414						$ 185
Pre-tax gain on sale of equity method investment			248	520	459	154	181						71				$ 23
After-tax gain on sale of equity method investment			$ 189	$ 392	$ 350	$ 119	$ 139						$ 54				18
Number of director positions | director																1				1
Dong Suh Foods Corporation
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest																50.00%				50.00%
Dong Suh Oil & Fats Co. Ltd.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest																49.00%				49.00%
JDEP and KDP
Schedule of Equity Method Investments [Line Items]
Quoted market price of ownership interest in equity method investment																$ 6,300
JDE
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest																						26.50%	43.50%
Percentage of equity method investment exchanged										26.40%	26.40%
Keurig
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest																						24.20%
Quoted market price of ownership interest in equity method investment																			$ 2,000
Pre-tax gain (loss) on equity method investment transaction																	$ (29)		$ 43

[1] Includes a basis difference of approximately $475 million as of December 31, 2021 and $519 million as of December 31, 2020 between the U.S. GAAP accounting basis for our equity method investments and the U.S. GAAP accounting basis of our investees’ equity.