Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions		Total	Common Stock	Additional Paid-in Capital	Retained Earnings / (Deficit)	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2019			652
Beginning balance at Dec. 31, 2019		$ 15,358	$ 0	$ 11,129	$ 12,454	$ (7,989)	$ (236)
Beginning balance, treasury (in shares) at Dec. 31, 2019							9
Consolidated Statements of Stockholders' Equity
Net income/(loss)		(12,385)			(12,385)
Dividends declared		(257)			(257)
Other comprehensive income (loss)		(1,049)				(1,049)
Common stock issued for employee equity awards and other (shares)	[1]		1
Common stock issued for employee equity awards and other	[1]	97		120			$ (23)
Stock purchased and retired (shares)			(6)
Stock purchased and retired		(344)		(104)	(240)
Government grant warrant issuance		114		114
Ending balance (in shares) at Dec. 31, 2020			647
Ending balance at Dec. 31, 2020		1,534	$ 0	11,259	(428)	(9,038)	$ (259)
Ending balance, treasury (in shares) at Dec. 31, 2020							9
Consolidated Statements of Stockholders' Equity
Net income/(loss)		280			280
Other comprehensive income (loss)		1,908				1,908
Common stock issued for employee equity awards and other (shares)	[1]		3				1
Common stock issued for employee equity awards and other	[1]	79		102			$ (23)
Government grant warrant issuance		86		86
Ending balance (in shares) at Dec. 31, 2021			650
Ending balance at Dec. 31, 2021		3,887	$ 0	11,447	(148)	(7,130)	$ (282)
Ending balance, treasury (in shares) at Dec. 31, 2021							10
Consolidated Statements of Stockholders' Equity
Net income/(loss)		1,318			1,318
Other comprehensive income (loss)		1,329				1,329
Common stock issued for employee equity awards and other (shares)	[1]		2				1
Common stock issued for employee equity awards and other	[1]	48		79			$ (31)
Ending balance (in shares) at Dec. 31, 2022			652
Ending balance at Dec. 31, 2022		$ 6,582	$ 0	$ 11,526	$ 1,170	$ (5,801)	$ (313)
Ending balance, treasury (in shares) at Dec. 31, 2022							11

[1] Treasury shares were withheld for payment of taxes, at a weighted average price per share of $40.52, $38.87 and $52.17 in 2022, 2021 and 2020, respectively.