Condensed Consolidated Statements of Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedge Gain (Loss)	Foreign Currency Translation	Defined Benefit Pension and Retiree Health Benefit Plans
Balance at beginning of period (in shares) at Dec. 31, 2020		472.0
Balance at beginning of period at Dec. 31, 2020	$ 8,476	$ 0	$ 8,650	$ (477)	$ 303	$ (61)	$ 360	$ 4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(61)			(61)
Other comprehensive income (loss), net of tax	(405)				(405)	53	(466)	8
Stock compensation	15		15
Issuance of stock under employee stock plans, net (in shares)		1.0
Issuance of stock under employee stock plans, net	(18)		(18)
Balance at end of period (in shares) at Mar. 31, 2021		473.0
Balance at end of period at Mar. 31, 2021	8,007	$ 0	8,647	(538)	(102)	(8)	(106)	12
Balance at beginning of period (in shares) at Dec. 31, 2021		473.1
Balance at beginning of period at Dec. 31, 2021	7,538	$ 0	8,696	(949)	(209)	25	(253)	19
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	48			48
Other comprehensive income (loss), net of tax	23				23	109	(85)	(1)
Stock compensation	14		14
Issuance of stock under employee stock plans, net (in shares)		1.0
Issuance of stock under employee stock plans, net	(11)		(11)
Balance at end of period (in shares) at Mar. 31, 2022		474.1
Balance at end of period at Mar. 31, 2022	$ 7,612	$ 0	$ 8,699	$ (901)	$ (186)	$ 134	$ (338)	$ 18