Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	For the Quarters Ended
	December 31, 2019		September 30, 2019		June 30, 2019		March 31, 2019
	(Amounts in millions, except per share data)
Net revenues	$	1,986	$	1,282	$	1,396	$	1,825
Cost of revenues	656		442		433		563
Operating income	454		247		336		570
Net income	525		204		328		447
Basic earnings per common share	0.68		0.27		0.43		0.58
Diluted earnings per common share	0.68		0.26		0.43		0.58

	For the Quarters Ended
	December 31, 2018 (1)		September 30, 2018		June 30, 2018		March 31, 2018
	(Amounts in millions, except per share data)
Net revenues	$	2,381	$	1,512	$	1,641	$	1,965
Cost of revenues	832		513		510		662
Operating income	694		265		434		595
Net income	685		260		402		500
Basic earnings per common share	0.90		0.34		0.53		0.66
Diluted earnings per common share	0.89		0.34		0.52		0.65

(1)

Quarterly financial data for the quarter ended December 31, 2018, as presented above, have been revised to reflect the correction of the tax error identified during 2019, as previously discussed in Note 2.