Restatement of Previously Issued Condensed Consolidated Financial Statements Schedule of Restatement of Consolidated Statement of Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 28, 2019	Sep. 29, 2018
Total Shareholders' Equity [Roll forward]
Beginning balance	$ 51,675	$ 51,833	$ 51,775	$ 65,708	$ 66,294	$ 66,070	$ 51,775	$ 66,070
Net income/(loss) excluding redeemable noncontrolling interest	894	449	405	621	754	1,008
Other comprehensive income/(loss)	(316)	(123)	135	(175)	(582)	74	(304)	(683)
Dividends declared-common stock	(491)	(488)	(488)	(762)	(762)	(762)
Cumulative effect of accounting standards adopted in the period			0	(2)		(95)
Exercise of stock options, issuance of other stock awards, and other	42	4	6	17	4	(1)
Ending balance	$ 51,804	$ 51,675	$ 51,833	$ 65,407	$ 65,708	$ 66,294	51,804	65,407
Common stock dividends declared (in dollars per share)	$ 400.0	$ 0.4	$ 0.4	$ 0.625	$ 0.625	$ 0.625
As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				$ 65,865	$ 66,455	$ 66,241		66,241
Net income/(loss) excluding redeemable noncontrolling interest				631	756	998
Other comprehensive income/(loss)				(177)	(588)	74		(691)
Dividends declared-common stock				(762)	(762)	(762)
Cumulative effect of accounting standards adopted in the period				(2)		(95)
Exercise of stock options, issuance of other stock awards, and other				17	4	(1)
Ending balance				65,572	65,865	66,455		65,572
Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				(157)	(161)	(171)		(171)
Net income/(loss) excluding redeemable noncontrolling interest				(10)	(2)	10
Other comprehensive income/(loss)				2	6			8
Ending balance				(165)	(157)	(161)		(165)
Common Stock
Total Shareholders' Equity [Roll forward]
Beginning balance	$ 12	$ 12	$ 12	12	12	12	12	12
Ending balance	12	12	12	12	12	12	12	12
Common Stock | As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				12	12	12		12
Ending balance				12	12	12		12
Common Stock | Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				0	0	0		0
Ending balance				0	0	0		0
Additional Paid-in Capital
Total Shareholders' Equity [Roll forward]
Beginning balance	57,769	58,252	58,723	58,689	58,656	58,634	58,723	58,634
Dividends declared-common stock	(491)	(488)	(488)
Exercise of stock options, issuance of other stock awards, and other	15	5	17	27	33	22
Ending balance	57,293	57,769	58,252	58,716	58,689	58,656	57,293	58,716
Additional Paid-in Capital | As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				58,766	58,733	58,711		58,711
Exercise of stock options, issuance of other stock awards, and other				27	33	22
Ending balance				58,793	58,766	58,733		58,793
Additional Paid-in Capital | Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				(77)	(77)	(77)		(77)
Ending balance				(77)	(77)	(77)		(77)
Retained Earnings/(Deficit)
Total Shareholders' Equity [Roll forward]
Beginning balance	(4,140)	(4,586)	(4,853)	8,624	8,634	8,495	(4,853)	8,495
Net income/(loss) excluding redeemable noncontrolling interest	899	449	405	619	754	1,003
Dividends declared-common stock				(762)	(762)	(762)
Cumulative effect of accounting standards adopted in the period			(136)	(2)		(95)
Exercise of stock options, issuance of other stock awards, and other	0	(3)	(2)		(2)	(7)
Ending balance	(3,241)	(4,140)	(4,586)	8,479	8,624	8,634	(3,241)	8,479
Retained Earnings/(Deficit) | As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				8,710	8,718	8,589		8,589
Net income/(loss) excluding redeemable noncontrolling interest				630	756	993
Dividends declared-common stock				(762)	(762)	(762)
Cumulative effect of accounting standards adopted in the period				(2)		(95)
Exercise of stock options, issuance of other stock awards, and other				0	(2)	(7)
Ending balance				8,576	8,710	8,718		8,576
Retained Earnings/(Deficit) | Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				(86)	(84)	(94)		(94)
Net income/(loss) excluding redeemable noncontrolling interest				(11)	(2)	10
Ending balance				(97)	(86)	(84)		(97)
Accumulated Other Comprehensive Income/(Losses)
Total Shareholders' Equity [Roll forward]
Beginning balance	(1,807)	(1,684)	(1,943)	(1,551)	(975)	(1,054)	(1,943)	(1,054)
Other comprehensive income/(loss)	(319)	(123)	123	(173)	(576)	79
Cumulative effect of accounting standards adopted in the period			136
Ending balance	(2,126)	(1,807)	(1,684)	(1,724)	(1,551)	(975)	(2,126)	(1,724)
Accumulated Other Comprehensive Income/(Losses) | As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				(1,557)	(975)	(1,054)		(1,054)
Other comprehensive income/(loss)				(175)	(582)	79
Ending balance				(1,732)	(1,557)	(975)		(1,732)
Accumulated Other Comprehensive Income/(Losses) | Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				6	0	0		0
Other comprehensive income/(loss)				2	6
Ending balance				8	6	0		8
Treasury Stock, at Cost
Total Shareholders' Equity [Roll forward]
Beginning balance	(291)	(291)	(282)	(254)	(240)	(224)	(282)	(224)
Exercise of stock options, issuance of other stock awards, and other	(26)		(9)	(10)	(14)	(16)
Ending balance	(265)	(291)	(291)	(264)	(254)	(240)	(265)	(264)
Treasury Stock, at Cost | As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				(254)	(240)	(224)		(224)
Exercise of stock options, issuance of other stock awards, and other				(10)	(14)	(16)
Ending balance				(264)	(254)	(240)		(264)
Treasury Stock, at Cost | Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				0	0	0		0
Ending balance				0	0	0		0
Noncontrolling Interest
Total Shareholders' Equity [Roll forward]
Beginning balance	132	130	118	188	207	207	118	207
Net income/(loss) excluding redeemable noncontrolling interest	(5)			2		5
Other comprehensive income/(loss)	3		12	(2)	(6)	(5)
Exercise of stock options, issuance of other stock awards, and other	1	2			(13)
Ending balance	$ 131	$ 132	$ 130	188	188	207	$ 131	188
Noncontrolling Interest | As Previously Reported
Total Shareholders' Equity [Roll forward]
Beginning balance				188	207	207		207
Net income/(loss) excluding redeemable noncontrolling interest				1		5
Other comprehensive income/(loss)				(2)	(6)	(5)
Exercise of stock options, issuance of other stock awards, and other				0	(13)
Ending balance				187	188	207		187
Noncontrolling Interest | Restatement | Restatement Impacts
Total Shareholders' Equity [Roll forward]
Beginning balance				0	0	0		0
Net income/(loss) excluding redeemable noncontrolling interest				1
Ending balance				$ 1	$ 0	$ 0		$ 1