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Preferred and Common Stock - Narrative (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
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Jun. 30, 2020 USD ($) | Dec. 31, 2023 USD ($) $ / shares shares | Sep. 30, 2023 USD ($) $ / shares | Jun. 30, 2023 USD ($) $ / shares | Mar. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) $ / shares | Jun. 30, 2022 USD ($) $ / shares | Mar. 31, 2022 USD ($) $ / shares | Dec. 31, 2021 USD ($) $ / shares shares | Sep. 30, 2021 USD ($) $ / shares | Jun. 30, 2021 USD ($) | Dec. 31, 2023 USD ($) class $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares
Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, number of classes | class |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) | shares |  | 600,000,000 |  |  |  |  |  |  |  |  |  |  | 600,000,000 |  |
Common Stock, Par or Stated Value Per Share | $ / shares |  | $ 1 |  |  |  |  |  |  |  |  |  |  | $ 1 |  |
Common stock issued (in shares) | shares |  | 409,914,461 |  |  |  |  |  |  |  |  |  |  | 409,914,461 |  |
Common stock outstanding (in shares) | shares |  | 409,914,461 |  |  |  | 412,000,000 |  |  |  | 422,000,000 |  |  | 409,914,461 | 412,000,000 | 422,000,000
Common (in usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.17 | $ 0.10 | $ 0.04
Dividends paid per share (in usd per share) | $ / shares |  | $ 0.05 | $ 0.04 | $ 0.04 | $ 0.04 | $ 0.04 | $ 0.02 | $ 0.02 | $ 0.02 | $ 0.02 | $ 0.02 |  |  |  |
Number of shares available for issuance (in shares) | shares |  | 47,000,000 |  |  |  |  |  |  |  |  |  |  | 47,000,000 |  |
Common stock reserved for future issuance (in shares) | shares |  | 26,000,000 |  |  |  |  |  |  |  |  |  |  | 26,000,000 |  |
Total value of shares repurchased |  | $ 100 | $ 25 | $ 100 | $ 25 | $ 65 | $ 100 | $ 60 | $ 175 | $ 205 | $ 25 | $ 200 | $ 250 | $ 400 | $ 430
Stock repurchase program, remaining repurchase amount |  | 697 |  |  |  |  |  |  |  |  |  |  | 697 |  |
Excise tax on net repurchases |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | $ 12 |  |  |  |  |  |  |  |  |  |  |  | 50 | 54 | 40
Stock based compensation expense, after tax |  |  |  |  |  |  |  |  |  |  |  |  | $ 44 | $ 49 | $ 36
Average risk-free interest rate. percentage |  |  |  |  |  |  |  |  |  |  |  |  | 4.40% | 2.00% | 0.20%
Number of options, outstanding weighted average remaining contractual life |  |  |  |  |  |  |  |  |  |  |  |  | 1 year 8 months 12 days |  |
Total intrinsic value of options outstanding |  | 15 |  |  |  |  |  |  |  |  |  |  | $ 15 |  |
Proceeds from exercise of employee stock options |  |  |  |  |  |  |  |  |  |  |  |  | 11 | $ 16 | $ 22
Total tax benefit realized from these exercises |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 2 | 2
Total intrinsic value of options exercised |  |  |  |  |  |  |  |  |  |  |  |  | 9 | 10 | 10
Total intrinsic value of options exercised converted |  |  |  |  |  |  |  |  |  |  |  |  | $ 187 | 61 | 55
Restructuring and Other Charges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2)
Employee stock option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options granted, vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |
Share-based compensation arrangement by share-based payment award, expiration period |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |
Stock options granted, contractual term |  |  |  |  |  |  |  |  |  |  |  |  | 6 months |  |
Employee stock option | Share-based Compensation Award, Tranche One |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 33.33% |  |
Employee stock option | Share-based Compensation Award, Tranche Two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 33.33% |  |
Employee stock option | Share-based Compensation Award, Tranche Three |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 33.33% |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options granted, contractual term |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |
Stock-based compensation capitalized |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0
Stock-based compensation expense capitalized |  | $ 24 |  |  |  |  |  |  |  |  |  |  | $ 24 |  |
Unrecognized compensation costs on non-vested awards, weighted average period of recognition in years |  |  |  |  |  |  |  |  |  |  |  |  | 1 year 6 months |  |
Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value (in usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 47.59 | $ 44.44 | $ 43.41
Volatility, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 39.00% | 39.40% | 56.00%
Preferred Class A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock dividend declared (usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.75 | $ 3.75 | $ 3.75
Number of shares of preferred stock authorized (in shares) | shares |  | 660,000 |  |  |  |  |  |  |  |  |  |  | 660,000 |  |
Preferred stock par value (usd per share) | $ / shares |  | $ 100 |  |  |  |  |  |  |  |  |  |  | $ 100 |  |
Preferred stock, shares outstanding (in shares) | shares |  | 546,024 |  |  |  | 546,024 |  |  |  |  |  |  | 546,024 | 546,024 |
Preferred Class B |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of preferred stock authorized (in shares) | shares |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  | 10,000,000 |  |
Preferred stock par value (usd per share) | $ / shares |  | $ 1 |  |  |  |  |  |  |  |  |  |  | $ 1 |  |
Preferred stock, shares outstanding (in shares) | shares |  | 0 |  |  |  | 0 |  |  |  |  |  |  | 0 | 0 |

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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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