Equity Method Investments (Details) shares in Millions, $ in Millions		3 Months Ended		12 Months Ended
	Mar. 04, 2020 USD ($) shares	Mar. 31, 2020 USD ($) director	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)	Jul. 09, 2018
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 6,887			$ 7,212
Equity method investment net earnings		138	$ 113
Cash dividends received from equity method investments		165	160
Pre-tax gain (loss) on equity method investment transaction		$ 71	$ 23
JDE
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		26.40%
KDP
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	13.10%	13.10%	13.60%	13.80%
Number of director positions | director		2
Pre-tax gain on sale of equity method investment		$ 71	$ 23
After-tax gain on sale of equity method investment		54	$ 18
Number of shares of equity method investment sold (in shares) | shares	6.8
Decrease in equity method investment ownership percentage	0.50%
Amount of equity method investment sold	$ 185
Fair value of ownership of equity method investment		$ 4,500
Dong Suh Foods Corporation
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		50.00%
Dong Suh Oil & Fats Co. Ltd.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		49.00%
Keurig | Keurig with Dr Pepper Snapple Group, Inc.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage						24.20%
Pre-tax gain (loss) on equity method investment transaction				$ 778
After-tax gain on equity method investment transaction				$ 586