CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Revenue from contract with customer	$ 447	$ 469	$ 414
Total revenue	503	525	470
Costs and expenses
Operations and maintenance – third parties	65	108	104
Operations and maintenance – related parties	59	54	46
Cost of product sold – third parties	5	7	0
Cost of product sold – related parties	31	25	0
Loss (gain) from revision of ARO and disposition of fixed assets	2	(3)	0
General and administrative – third parties	11	8	10
General and administrative – related parties	49	52	48
Depreciation, amortization and accretion	49	46	45
Property and other taxes	17	16	17
Total costs and expenses	288	313	270
Operating income	215	212	200
Income from equity method investments	373	235	187
Dividend income from other investments	14	67	37
Other income	36	31	0
Investment, dividend and other income	423	333	224
Interest expense, net	92	62	32
Income before income taxes	546	483	392
Income tax expense	0	1	0
Net income	546	482	392
Less: Net income attributable to the Parent	0	0	77
Less: Net income attributable to noncontrolling interests	18	18	20
Net income attributable to the Partnership	528	464	295
General partner’s interest in net income attributable to the Partnership	147	134	64
Limited Partners’ interest in net income attributable to the Partnership	$ 381	$ 330	$ 231
Net income per Limited Partner Unit - Basic and Diluted:
Distributions per Limited Partner unit (in dollars per share)	$ 1.7500	$ 1.4950	$ 1.2461
Common
Costs and expenses
Net income attributable to the Partnership	$ 381	$ 330	$ 231
Net income per Limited Partner Unit - Basic and Diluted:
Net income per Limited Partner Unit - Basic and Diluted (in dollars per share)	$ 1.66	$ 1.50	$ 1.28
Weighted average Limited Partner Units outstanding - Basic and Diluted:
Weighted average limited partner units - Basic and Diluted (in units)	229.2	220.3	180.4
Common units - public
Costs and expenses
Net income	$ 204	$ 182	$ 119
Weighted average Limited Partner Units outstanding - Basic and Diluted:
Weighted average limited partner units - Basic and Diluted (in units)	123.8	121.3	91.4
Common units - public | Shell Pipeline Company L P
Costs and expenses
Net income	$ 177	$ 147	$ 112
Common units - SPLC | Shell Pipeline Company L P
Weighted average Limited Partner Units outstanding - Basic and Diluted:
Weighted average limited partner units - Basic and Diluted (in units)	105.4	99.0	89.0
Third Parties | Transportation, Terminaling And Storage Services
Revenue
Revenue from contract with customer	$ 143	$ 209	$ 236
Third Parties | Product Revenue
Revenue
Revenue from contract with customer	5	2	0
Related Parties
Revenue
Lease revenue – related parties	56
Lease revenue – related parties	56	56	56
Related Parties | Transportation, Terminaling And Storage Services
Revenue
Revenue from contract with customer	264	229	178
Related Parties | Product Revenue
Revenue
Revenue from contract with customer	$ 35	$ 29	$ 0