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Shareholders' Equity - Shares Repurchased (Details) - USD ($) | 2 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 28, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Aug. 03, 2022 | Feb. 23, 2022
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Total payments |  | $ 500,000,000 | $ 496,000,000 | $ 446,000,000 |  |
Common Shares |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Authorized repurchase amount |  |  |  |  | $ 250,000,000 | $ 350,000,000
Number of shares repurchased (in shares) |  | 8,847,981 | 10,519,040 | 15,787,804 |  |
Total payments |  | $ 503,000,000 | $ 496,000,000 | $ 446,000,000 |  |
Average Price Paid Per Share (in dollars per share) |  | $ 56.79 | $ 47.19 | $ 28.23 |  |
Subsequent Event | Common Shares |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Remaining shares authorized to be repurchased, amount | $ 201,000,000 |  |  |  |  |
Number of shares repurchased (in shares) | 36,369 |  |  |  |  |
Total payments | $ 2,000,000 |  |  |  |  |
Average Price Paid Per Share (in dollars per share) | $ 62.23 |  |  |  |  |

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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