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Capital Stock - Narrative (Details) $ / shares in Units, shares in Thousands, $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2023 USD ($) anniversary $ / shares shares | Jun. 30, 2023 $ / shares | Mar. 31, 2023 $ / shares | Dec. 31, 2022 $ / shares | Sep. 30, 2022 $ / shares | Jun. 30, 2022 $ / shares | Mar. 31, 2022 $ / shares | Sep. 30, 2023 USD ($) anniversary $ / shares shares | Dec. 31, 2022 shares | Jan. 31, 2023 USD ($)
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Authorized amount | $ |  |  |  |  |  |  |  |  |  | $ 300
Stock repurchased during period (in shares) | shares | 1,900 |  |  |  |  |  |  | 2,800 |  |
Stock repurchased during period, average price per share (in dollars per share) | $ / shares | $ 26.71 |  |  |  |  |  |  | $ 24.86 |  |
Common stock, dividends, per share, declared (in usd per share) | $ / shares | $ 0.225 | $ 0.225 | $ 0.225 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 |  |  |
Performance Based RSUs Equity Settled | Minimum |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Payout percentage of target award |  |  |  |  |  |  |  | 0.00% |  |
2021 Award Year | Performance Based RSUs Equity Settled |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Performance period, performance-based RSUs |  |  |  |  |  |  |  | 3 years |  |
2021 Award Year | Performance Based RSUs Equity Settled | Maximum |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Payout percentage of target award |  |  |  |  |  |  |  | 200.00% |  |
2021 Award Year | Performance Based RSUs Equity Settled | Minimum |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Cliff-vesting period |  |  |  |  |  |  |  | 1 year |  |
2021 Award Year | Timed-Vested RSUs Equity Settled |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Number of anniversaries of the grant date | anniversary | 3 |  |  |  |  |  |  | 3 |  |
2021 Award Year | Timed-Vested RSUs Equity Settled | Minimum |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Cliff-vesting period |  |  |  |  |  |  |  | 1 year |  |
Total of 3Q19, 1Q20, and 3Q21 Repurchase Programs |  |  |  |  |  |  |  |  |  |
Capital Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) | shares |  |  |  |  |  |  |  | 2,817 | 19,506 |
Remaining authorized repurchase amount | $ | $ 230 |  |  |  |  |  |  | $ 230 |  |

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