CONDENSED STATEMENT OF SHAREHOLDERS EQUITY Statement - USD ($) shares in Thousands, $ in Millions	Total		Including Noncontrolling Interest [Member]	AOCI Attributable to Parent [Member]	Common Stock [Member]	Retained Earnings [Member]	Balances with Adoption of Topic 842 [Member]	Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ (271)		$ (6,334)		$ 0	$ (6,063)
Shares, Issued					332,000
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	2
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			23		$ 23
Employee Stock Option and SARs Exercises, Value			(27)		$ (23)	(4)
Employee Stock Option and SARs Exercises, Shares					2,000
Stock Repurchased During Period, Value	$ (528)	[1]	(528)			(528)
Stock Repurchased During Period, Shares	(6,507)	[1]			(7,000)
Dividends, Common Stock			(121)			(121)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest			487
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ 9		9	$ 9
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	5		5	5
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax			40
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent				40
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest			433
Net Income (Loss) Attributable to Parent	433					433
Accumulated deficit								$ (256)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(215)		(6,754)		$ 0	(6,539)
Shares, Issued					327,000
Stockholders' Equity Attributable to Parent	(7,926)
Accumulated deficit	7,592
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(334)		(7,926)		$ 0	(7,592)
Shares, Issued					306,000
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			25		$ 25
Employee Stock Option and SARs Exercises, Value			(38)		$ (25)	(13)
Employee Stock Option and SARs Exercises, Shares					1,000
Stock Repurchased During Period, Value	$ (106)	[2]	(106)			(106)
Stock Repurchased During Period, Shares	(1,127)	[2]			(1,000)
Dividends, Common Stock			(129)			(129)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest			272
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ (23)		(23)	(23)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	3		3	3
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax			30
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent				$ 30
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest			262
Net Income (Loss) Attributable to Parent	262					262
Stockholders' Equity Attributable to Parent	(7,904)
Accumulated deficit	7,580						$ (2)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ (324)		$ (7,904)		$ 0	$ (7,580)
Shares, Issued					306,000

[1] Includes the effect of $30 million in share repurchases (0.4 million shares) with trade dates prior to March 31, 2018, but cash settlement dates subsequent to March 31, 2018.

[2] Includes the effect of $2 million in share repurchases (0.02 million shares) with trade dates prior to March 31, 2019, but cash settlement dates subsequent to March 31, 2019 and excludes the effect of $5 million in share repurchases (0.05 million shares) with trade dates on, or prior to, December 31, 2018, but cash settlement dates subsequent to December 31, 2018.