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v3.19.3.a.u2

Acquisitions (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2019 | May 31, 2019 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2018
Huatai Group [Member] |  |  |  |  |
Investment [Line Items] |  |  |  |  |
Equity method investment, additional ownership percentage obtained | 4.70% |  |  |  |
Ownership Percentage | 30.90% |  | 30.90% |  | 20.00%
Huatai Group [Member] | CHINA |  |  |  |  |
Investment [Line Items] |  |  |  |  |
Payments to Acquire Equity Method Investments | $ 251 | $ 329 |  |  |
Equity method investment, additional ownership percentage obtained |  | 6.20% |  |  |
Ownership Percentage | 31.00% |  | 31.00% |  | 20.00%
Huatai Group [Member] | Subsequent Event [Member] | CHINA |  |  |  |  |
Investment [Line Items] |  |  |  |  |
Equity method investment, additional 7.1 percentage obtained |  |  |  | 7.10% |
Portion two of payments to acquire equity method investments |  |  |  | $ 493 |
Portion one of payments to acquire equity method investments |  |  |  | $ 1,100 |
Equity method investment, additional 15.3 ownership percentage obtained |  |  |  | 15.30% |
Equity method investment, additional 22.4 ownership percentage obtained |  |  |  | 22.40% |
Amount agreed to acquire 22.4 percent of Huatai Group |  |  |  | $ 1,600 |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions |  |  |  | 53.30% |
Banchile Seguros de Vida [Member] |  |  |  |  |
Investment [Line Items] |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  | $ 80 |  |

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