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Schedule II (STATEMENTS OF CASH FLOWS - Parent Company Only) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net Cash Provided by (Used in) Operating Activities, Total |  | $ 11,149 | $ 9,785 | $ 6,342
Dividends paid on Common Shares |  | (1,401) | (1,388) | (1,354)
Common Shares repurchased |  | (4,861) | (523) | (1,530)
Net cash flows (used for) from financing activities |  | (4,409) | (2,082) | (151)
Effect of foreign currency rate changes on cash and restricted cash |  | (106) | 8 | 20
Cash and restricted cash – beginning of year |  | 1,747 | 1,537 |
Cash and restricted cash – end of year |  | 1,659 | 1,747 | 1,537
Payments for (Proceeds from) Other Investing Activities |  | 337 | 470 | 657
Chubb limited (Parent Guarantor) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net Cash Provided by (Used in) Operating Activities, Total | [1] | 4,167 | 1,933 | 412
Payment Of Contributions To Subsidiary |  |  | (1,200) | (1,000)
Net cash flows used for investing activities |  | 0 | (1,202) | (1,000)
Dividends paid on Common Shares |  | (1,401) | (1,388) | (1,354)
Common Shares repurchased |  | (4,861) | (523) | (327)
Payments To From Affiliates |  | 2,003 | 1,265 | 2,301
Net proceeds from (payments to) affiliated notional cash pooling programs | [2] | 8 | 0 | (35)
Net cash flows (used for) from financing activities |  | (4,251) | (646) | 585
Effect of foreign currency rate changes on cash and restricted cash |  | 1 | (3) | 4
Net increase (decrease) in cash and restricted cash |  | (83) | 82 | 1
Cash and restricted cash – beginning of year |  | 84 | 2 | 1
Cash and restricted cash – end of year |  | 1 | 84 | 2
Cash dividend paid by Affiliates | [1] | 3,700 | 2,000 | 200
Payments for (Proceeds from) Other Investing Activities |  | $ 0 | $ (2) | $ 0
[1] | Includes cash dividends received from subsidiaries of $3.7 billion, $2.0 billion, and $200 million in 2021, 2020, and 2019, respectively.
[2] | Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Refer to Note 1 f) for additional information.

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