Capital Accounts, Redeemable Preferred Limited Partner Interests (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Temporary Equity [Line Items]
Treasury units			$ 1,297	$ 1,297
Series A cumulative convertible preferred units (in dollars per unit)	$ 1,000
Series A cumulative convertible preferred units outstanding (in units)	50,000	50,138	50,412	50,412	50,138
Cash proceeds from the issuance of preferred units	$ 32		$ 0	$ 0	$ 32
Common units exchanged for preferred units, with common units received being immediately cancelled	18				18
Total offering price for redeemable noncontrolling interests	$ 50
Offering expenses					1
Total distributions paid to convertible preferred unitholders				3	$ 1
Cash distributions paid to convertible preferred unitholders			$ 3	$ 3
Preferred unit distribution rate			7.25%
Redemption price per preferred unit on or after September 30, 2025 at unitholder election (in dollars per unit)			$ 1,000
Redemption price per preferred unit from September 30, 2020 through September 29, 2022 (in dollars per unit)			1,100
Redemption price per preferred unit from September 30, 2022 through September 29, 2024 (in dollars per unit)			1,070
Redemption price per preferred unit from September 30, 2024 through September 29, 2025 (in dollars per unit)			1,030
Redemption price per preferred unit from September 30, 2025 through September 29, 2026 (in dollars per unit)			1,010
Redemption price per preferred unit on or after September 30, 2026 (in dollars per unit)			1,000
Redemption price per preferred unit if Change of Control event occurs (in dollars per unit)			$ 1,010
Percentage applied to the common unit market price in calculating the number of common units to be acquired upon the conversion of series A preferred units to common units			92.50%
Percentage of preferred units that may be converted into common units at unitholder option			50.00%
EPCO and its privately held affiliates [Member]
Temporary Equity [Line Items]
Series A cumulative convertible preferred units issued (in units)	15,000
Series A cumulative convertible preferred units, paid-in kind distribution (in units)		138		274
Cash proceeds from the issuance of preferred units	$ 15
Preferred Units [Member]
Temporary Equity [Line Items]
Treasury units outstanding (preferred units) (in units)	855,915
Common Units [Member]
Temporary Equity [Line Items]
Common units exchanged for preferred units in September 2020, with the common units received being immediately cancelled (in units)					1,120,588