Note 14 - Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

QUARTERLY FINANCIAL DATA (UNAUDITED)

QUARTERLY FINANCIAL DATA (UNAUDITED)

	Quarters
	First		Second		Third		Fourth		Total Year
2016	(In millions, except per unit amounts)
Revenues	$	300	$	293	$	308	$	319	$	1,220
Operating expenses	117		112		112		128		469
Operating income	119		118		127		123		487
Net earnings	85		76		81		73		315
Limited partners' interest in net earnings	60		47		48		32		187
Net earnings per limited partner unit (a):
Common - basic	$	0.64	$	0.48	$	0.46	$	0.31	$	1.87
Common - diluted	$	0.64	$	0.48	$	0.46	$	0.31	$	1.87
2015
Revenues	$	263	$	275	$	282	$	292	$	1,112
Operating expenses	101		115		117		135		468
Operating income	99		97		100		97		393
Net earnings	65		60		65		59		249
Limited partners' interest in net earnings	50		49		54		46		199
Net earnings per limited partner unit (a):
Common - basic	$	0.63	$	0.60	$	0.62	$	0.49	$	2.33
Common - diluted	$	0.63	$	0.60	$	0.62	$	0.49	$	2.33

(a) The sum of four quarters may not equal annual results due to rounding or the quarterly number of units outstanding.