Partners' Capital and Distributions (Changes in Limited Partner Units Outstanding) (Details) - USD ($)		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Capital Unit [Line Items]
Stock repurchase program, authorized amount (up to)		$ 1,500,000,000
Limited Partners' Capital Account [Roll Forward]
Common units outstanding, beginning balance (in shares)		212,387,990	223,119,811	228,403,428
Units repurchased (in shares)		(9,578,502)	(10,894,828)	(5,568,260)
Units issued (in shares)		200,949	150,435	275,093
Common units outstanding, ending balance (in shares)		203,033,837	212,387,990	223,119,811
Right to receive distribution in cash, period		45 days
Removal of general partner, percentage vote required		100.00%
Annual report available, period		120 days
Tax reporting information, period		90 days
Management
Limited Partners' Capital Account [Roll Forward]
Units issued (in shares)		200,949	150,435	275,093
Director
Limited Partners' Capital Account [Roll Forward]
Units issued (in shares)	[1]	23,400	12,572	9,550

[1] issued to settle the equity-based retainer paid to our independent directors of our board.