CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Shares ($1 par value)	Paid-In Capital	Retained (Deficit) Earnings	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest
Balance at Dec. 31, 2017	$ 183	$ 310	$ 0	$ (298)	$ (65)	$ 236
Increase (Decrease) in Stockholders' Equity
Reclassification of disproportionate tax effects (Refer to Note K)	0			59	(59)
Total comprehensive income	208			149	40	19
Shares issued	(13)	2	(7)	(8)
Shares retired:
Repurchased	(150)	(4)		(146)
Surrendered (non-cash)	(19)			(19)
Cash dividends declared	(33)			(33)
Stock-based compensation	7		7
Balance at Mar. 31, 2018	183	308	0	(296)	(84)	255
Balance at Dec. 31, 2017	183	310	0	(298)	(65)	236
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	379
Balance at Jun. 30, 2018	126	305	0	(221)	(118)	160
Balance at Mar. 31, 2018	183	308	0	(296)	(84)	255
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	171			211	(34)	(6)
Shares issued	(1)		(1)
Shares retired:
Repurchased	(115)	(3)	(8)	(104)
Cash dividends declared	(32)			(32)
Dividends paid to noncontrolling interest	(89)					(89)
Stock-based compensation	9		9
Balance at Jun. 30, 2018	126	305	0	(221)	(118)	160
Balance at Dec. 31, 2018	69	294	0	(278)	(127)	180
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	128			116	4	8
Shares issued	5	1	4
Shares retired:
Repurchased	(122)	(3)	(11)	(108)
Surrendered (non-cash)	(10)	(1)		(9)
Cash dividends declared	(35)			(35)
Stock-based compensation	7		7
Balance at Mar. 31, 2019	42	291	0	(314)	(123)	188
Balance at Dec. 31, 2018	69	294	0	(278)	(127)	180
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	390
Shares retired:
Repurchased	(289)
Balance at Jun. 30, 2019	71	287	0	(261)	(117)	162
Balance at Mar. 31, 2019	42	291	0	(314)	(123)	188
Increase (Decrease) in Stockholders' Equity
Total comprehensive income	262			240	6	16
Shares issued	2	1	1
Shares retired:
Repurchased	(167)	(5)	(10)	(152)
Cash dividends declared	(35)			(35)
Dividends paid to noncontrolling interest	(42)					(42)
Stock-based compensation	9		9
Balance at Jun. 30, 2019	$ 71	$ 287	$ 0	$ (261)	$ (117)	$ 162