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Equity Method Investments - Narrative (Details) € / shares in Units, $ in Millions |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |
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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.

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