UNAUDITED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue
Revenue from contract with customer	$ 122	$ 125
Lease revenue – related parties	13	14
Total revenue	135	139
Costs and expenses
Operations and maintenance – third parties	15	11
Operations and maintenance – related parties	26	27
Cost of product sold	9	4
Impairment of fixed assets	0	3
General and administrative – third parties	2	2
General and administrative – related parties	11	10
Depreciation, amortization and accretion	12	13
Property and other taxes	5	5
Total costs and expenses	80	75
Operating income	55	64
Income from equity method investments	108	102
Other income	10	14
Investment and other income	118	116
Interest income	8	8
Interest expense	21	21
Income before income taxes	160	167
Income tax expense	0	0
Net income	160	167
Less: Net income attributable to noncontrolling interests	2	4
Net income attributable to the Partnership	158	163
Components of Limited Partners' Interest In Net Income Attributable to the Partnership's Common Unit holders
Preferred unitholder’s interest in net income attributable to the Partnership	12	12
Limited Partners’ interest in net income attributable to the Partnership’s common unitholders	$ 146	$ 151
Net income per Limited Partner Unit - Basic and Diluted:
Distributions per Limited Partner unit (in dollars per share)	$ 0.3000	$ 0.4600
Common
Net income per Limited Partner Unit - Basic and Diluted:
Common - basic (in dollars per share)	0.37	0.38
Common - diluted (in dollars per share)	$ 0.36	$ 0.37
Common Unitholders Public
Weighted average Limited Partner Units outstanding - Basic and Diluted:
Common units - basic (in shares)	123.8	123.8
Common units - diluted (in shares)	123.8	123.8
Common Unitholder SPLC
Weighted average Limited Partner Units outstanding - Basic and Diluted:
Common units - basic (in shares)	269.5	269.5
Common units - diluted (in shares)	320.3	320.3
Third Parties | Transportation, Terminaling and Storage Services
Revenue
Revenue from contract with customer	$ 32	$ 41
Related Parties
Revenue
Lease revenue – related parties	13	14
Related Parties | Transportation, Terminaling and Storage Services
Revenue
Revenue from contract with customer	79	78
Related Parties | Product Revenue
Revenue
Revenue from contract with customer	$ 11	$ 6