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Equity-Based Awards, Phantom Unit Awards (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract] |  |  |  |  |  |  |
Cash payments made in connection with DERs |  | $ 38 |  | $ 34 |  | $ 31 |
Phantom Unit Awards [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting rate of phantom unit awards |  | 25.00% |  |  |  |  |
Summary of awards activity, equity instruments other than options [Roll Forward] |  |  |  |  |  |  |
Beginning of period (in units) |  | 17,982,945 |  | 17,170,919 |  | 15,669,442 |
Granted (in units) |  | 8,904,445 | [1] | 7,968,880 | [2] | 7,720,645 | [3]
Vested (in units) |  | (6,786,085) |  | (6,616,741) |  | (5,648,281) |
Forfeited (in units) |  | (544,054) |  | (540,113) |  | (570,887) |
End of period (in units) |  | 19,557,251 |  | 17,982,945 |  | 17,170,919 |
Common units issued in connection with the vesting of phantom unit awards, net (in units) |  | 4,662,539 |  | 4,571,333 |  | 3,936,437 |
Phantom units outstanding, weighted-average grant date fair value [Roll Forward] |  |  |  |  |  |  |
Weighted-average grant date fair value per unit, at beginning of period (in dollars per unit) | [4] | $ 23.94 |  | $ 24.31 |  | $ 26.76 |
Granted weighted-average grant date fair value per unit (in dollars per unit) | [4] | 25.8 | [1] | 24.11 | [2] | 21.3 | [3]
Vested weighted-average grant date fair value per unit (in dollars per unit) | [4] | 24.81 |  | 25.08 |  | 26.98 |
Forfeited weighted-average grant date fair value per unit (in dollars per unit) | [4] | 24.52 |  | 23.92 |  | 24.44 |
Weighted-average grant date fair value per unit, at end of period (in dollars per unit) | [4] | $ 24.47 |  | $ 23.94 |  | $ 24.31 |
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract] |  |  |  |  |  |  |
Aggregate grant date fair value |  | $ 230 |  | $ 192 |  | $ 164 |
Estimated forfeiture rate |  | 2.00% |  | 2.10% |  | 2.00% |
Cash payments made in connection with DERs |  | $ 38 |  | $ 34 |  | $ 31 |
Total intrinsic value of phantom unit awards that vested during period |  | 182 |  | $ 160 |  | $ 124 |
Unrecognized Compensation Expense [Abstract] |  |  |  |  |  |  |
Unrecognized compensation cost |  | $ 179 |  |  |  |  |
Recognition period for total unrecognized compensation cost |  | 2 years 1 month 6 days |  |  |  |  |
Phantom Unit Awards [Member] | Minimum [Member] |  |  |  |  |  |  |
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract] |  |  |  |  |  |  |
Grant date market price of common units (in dollars per unit) |  | $ 25.8 |  | $ 24.1 |  | $ 20.79 |
Phantom Unit Awards [Member] | Maximum [Member] |  |  |  |  |  |  |
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract] |  |  |  |  |  |  |
Grant date market price of common units (in dollars per unit) |  | $ 26.7 |  | $ 26.62 |  | $ 22.05 |
Phantom Unit Awards [Member] | Enterprise [Member] |  |  |  |  |  |  |
Unrecognized Compensation Expense [Abstract] |  |  |  |  |  |  |
Unrecognized compensation cost |  | $ 144 |  |  |  |  |
[1] | The aggregate grant date fair value of phantom unit awards issued during 2023 was $230 million based on a grant date market price of the Partnership’s common units ranging from $25.80 to $26.70 per unit. An estimated annual forfeiture rate of 2.0% was applied to these awards.
[2] | The aggregate grant date fair value of phantom unit awards issued during 2022 was $192 million based on a grant date market price of the Partnership’s common units ranging from $24.10 to $26.62 per unit. An estimated annual forfeiture rate of 2.1% was applied to these awards.
[3] | The aggregate grant date fair value of phantom unit awards issued during 2021 was $164 million based on a grant date market price of the Partnership’s common units ranging from $20.79 to $22.05 per unit. An estimated annual forfeiture rate of 2.0% was applied to these awards.
[4] | Determined by dividing the aggregate grant date fair value of awards (before an allowance for forfeitures) by the number of awards issued.

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