Earnings per Unit (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Unit

The following table summarizes the basic and diluted earnings per unit calculations (in millions, except per unit amounts):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Allocation of net income among partner interests:
Net income allocated to Class A common unitholders	$	221	$	145	$	659	$	395
Net income allocated to Partnership exchangeable unitholders	107		78		329		215
Net income attributable to common unitholders	$	328	$	223	$	988	$	610
Denominator - basic and diluted partnership units:
Weighted average Class A common units	202		202		202		202
Weighted average Partnership exchangeable units	151		162		154		164
Earnings per unit - basic and diluted:
Class A common units (a)	$	1.09	$	0.72	$	3.26	$	1.96
Partnership exchangeable units (a)	$	0.71	$	0.48	$	2.14	$	1.31

(a) Earnings per unit may not recalculate exactly as it is calculated based on unrounded numbers.