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Equity (Restricted Stock, Performance Share Awards and Options) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restricted Stock Awards [Member] |  |  |
Activity [Roll Forward] |  |  |
Nonvested balance at beginning of year (in shares) | 1,992,045 |  |
Granted (in shares) | 1,520,616 |  |
Vested (in shares) | (693,058) |  |
Forfeited (in shares) | (158,366) |  |
Nonvested balance at end of year (in shares) | 2,661,237 | 1,992,045 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Nonvested balance at beginning of year, weighted-average grant date fair value (in dollars per share) | $ 77.93 |  |
Granted, weighted-average grant date fair value (in dollars per share) | 72.24 | $ 75.13 | $ 82.69
Vested, weighted-average grant date fair value (in dollars per share) | 75.01 |  |
Forfeited, weighted-average grant date fair value (in dollars per share) | 79.29 |  |
Nonvested balance at end of year, weighted-average grant date fair value (in dollars per share) | $ 75.93 | $ 77.93 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |
Award vesting period | 3 years |  |
Performance Share Awards [Member] |  |  |
Activity [Roll Forward] |  |  |
Nonvested balance at beginning of year (in shares) | 1,137,082 |  |
Granted (in shares) | 1,102,159 |  |
Vested (in shares) | (730,720) |  |
Forfeited (in shares) | (121,268) |  |
Nonvested balance at end of year (in shares) | 1,387,253 | 1,137,082 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Nonvested balance at beginning of year, weighted-average grant date fair value (in dollars per share) | $ 71.17 |  |
Granted, weighted-average grant date fair value (in dollars per share) | 71.79 | $ 58.67 | $ 54.82
Vested, weighted-average grant date fair value (in dollars per share) | 67.08 |  |
Forfeited, weighted-average grant date fair value (in dollars per share) | 75.10 |  |
Nonvested balance at end of year, weighted-average grant date fair value (in dollars per share) | $ 71.27 | $ 71.17 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |
Award vesting period | 3 years |  |
Restricted Stock and Performance Share Awards [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Total fair value of awards vested | $ 106 | $ 175 | $ 186
Share-based Payment Arrangement, Option [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |
Award vesting period | 3 years |  |
Maximum term | 10 years |  |

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- Definition The weighted average fair value as of the grant date of share-based award plans other than stock option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan + References No definition available. + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -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 The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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