CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common stock	Capital in excess of par value	Treasury shares at cost	Accumulated other comprehensive income (loss)	Accumulated deficit	Total stock- holders’ equity	Non- controlling interests
Balance (in shares) at Dec. 31, 2018	292,790
Balance at Dec. 31, 2018	$ 10,690	$ 67	$ 15,460	$ (3,238)	$ 123	$ (1,907)	$ 10,505	$ 185
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(16)					(21)	(21)	5
Other comprehensive income	(14)				(14)		(14)
Share-based compensation plans	$ 87		87				87
Shares issued pursuant to stock awards (in shares)	867
Shares issued pursuant to stock awards	$ 32			83		(51)	32
Treasury shares and restricted stock unit withholdings (in shares)	(8,482)
Treasury shares and restricted stock unit withholdings	$ (715)			(715)			(715)
Shareholder tax on repurchased shares	$ (62)					(62)	(62)
Dividends common stock (USD per share)	$ 0.250
Dividends common stock	$ (71)					(71)	(71)
Balance (in shares) at Mar. 31, 2019	285,175
Balance at Mar. 31, 2019	$ 9,931	67	15,547	(3,870)	109	(2,112)	9,741	190
Balance (in shares) at Dec. 31, 2018	292,790
Balance at Dec. 31, 2018	$ 10,690	67	15,460	(3,238)	123	(1,907)	10,505	185
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	149
Other comprehensive income	$ (56)
Dividends common stock (USD per share)	$ 0.875
Balance (in shares) at Sep. 29, 2019	279,479
Balance at Sep. 29, 2019	$ 9,595	67	15,722	(4,429)	67	(2,037)	9,390	205
Balance (in shares) at Mar. 31, 2019	285,175
Balance at Mar. 31, 2019	$ 9,931	67	15,547	(3,870)	109	(2,112)	9,741	190
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	46					41	41	5
Other comprehensive income	9				9		9
Share-based compensation plans	$ 88		88				88
Shares issued pursuant to stock awards (in shares)	194
Shares issued pursuant to stock awards	$ 6			18		(12)	6
Treasury shares and restricted stock unit withholdings (in shares)	(6,616)
Treasury shares and restricted stock unit withholdings	$ (645)			(645)			(645)
Shareholder tax on repurchased shares	$ 155					155	155
Dividends common stock (USD per share)	$ 0.25
Dividends common stock	$ (70)					(70)	(70)
Balance (in shares) at Jun. 30, 2019	278,753
Balance at Jun. 30, 2019	$ 9,520	67	15,635	(4,497)	118	(1,998)	9,325	195
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	119					109	109	10
Other comprehensive income	(51)				(51)		(51)
Share-based compensation plans	$ 87		87				87
Shares issued pursuant to stock awards (in shares)	815
Shares issued pursuant to stock awards	$ 32			77		(45)	32
Treasury shares and restricted stock unit withholdings (in shares)	(89)
Treasury shares and restricted stock unit withholdings	$ (9)			(9)			(9)
Shareholder tax on repurchased shares	$ 2					2	2
Dividends common stock (USD per share)	$ 0.375
Dividends common stock	$ (105)					(105)	(105)
Balance (in shares) at Sep. 29, 2019	279,479
Balance at Sep. 29, 2019	$ 9,595	67	15,722	(4,429)	67	(2,037)	9,390	205
Balance (in shares) at Dec. 31, 2019	281,437
Balance at Dec. 31, 2019	$ 9,655	64	15,184	(3,037)	75	(2,845)	9,441	214
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(13)					(21)	(21)	8
Other comprehensive income	(61)				(61)		(61)
Share-based compensation plans	$ 108		108				108
Shares issued pursuant to stock awards (in shares)	497
Shares issued pursuant to stock awards	$ 29			47		(18)	29
Treasury shares and restricted stock unit withholdings (in shares)	(2,933)
Treasury shares and restricted stock unit withholdings	$ (355)			(355)			(355)
Expiration of stock purchase warrants			(56)			56
Dividends common stock (USD per share)	$ 0.375
Dividends common stock	$ (105)					(105)	(105)
Balance (in shares) at Mar. 29, 2020	279,001
Balance at Mar. 29, 2020	$ 9,258	64	15,236	(3,345)	14	(2,933)	9,036	222
Balance (in shares) at Dec. 31, 2019	281,437
Balance at Dec. 31, 2019	$ 9,655	64	15,184	(3,037)	75	(2,845)	9,441	214
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(240)
Other comprehensive income	$ 15
Dividends common stock (USD per share)	$ 1.125
Balance (in shares) at Sep. 27, 2020	279,729
Balance at Sep. 27, 2020	$ 9,073	64	15,314	(3,279)	90	(3,313)	8,876	197
Balance (in shares) at Mar. 29, 2020	279,001
Balance at Mar. 29, 2020	$ 9,258	64	15,236	(3,345)	14	(2,933)	9,036	222
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(209)					(214)	(214)	5
Other comprehensive income	36				36		36
Share-based compensation plans	$ 104		104				104
Shares issued pursuant to stock awards (in shares)	252
Shares issued pursuant to stock awards	$ 8			23		(15)	8
Treasury shares and restricted stock unit withholdings (in shares)	(40)
Treasury shares and restricted stock unit withholdings	$ (3)			(3)			(3)
Expiration of stock purchase warrants			(112)			112
Dividends common stock (USD per share)	$ 0.375
Dividends non-controlling interests	$ (34)							(34)
Dividends common stock	$ (105)					(105)	(105)
Balance (in shares) at Jun. 28, 2020	279,213
Balance at Jun. 28, 2020	$ 9,055	64	15,228	(3,325)	50	(3,155)	8,862	193
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(18)					(22)	(22)	4
Other comprehensive income	40				40		40
Share-based compensation plans	$ 86		86				86
Shares issued pursuant to stock awards (in shares)	611
Shares issued pursuant to stock awards	$ 27			58		(31)	27
Treasury shares and restricted stock unit withholdings (in shares)	(95)
Treasury shares and restricted stock unit withholdings	$ (12)			(12)			(12)
Dividends common stock (USD per share)	$ 0.375
Dividends common stock	$ (105)					(105)
Balance (in shares) at Sep. 27, 2020	279,729
Balance at Sep. 27, 2020	$ 9,073	$ 64	$ 15,314	$ (3,279)	$ 90	$ (3,313)	$ 8,876	$ 197