Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities
Net (loss) / income	$ (411)	$ 688	$ 625
Adjustments to reconcile net (loss) / income to net cash provided by operating activities:
Depreciation and amortization	463	481	490
Restructuring and other	(26)	34	(26)
Loss from disposal of discontinued operations	101	0	0
Goodwill impairment	0	0	25
Pension expense	1,567	92	66
Pension contributions	(236)	(27)	(23)
Stock-based compensation	33	32	29
Loss from early extinguishments of debt	68	0	27
Deferred income taxes	(248)	33	(35)
Changes in assets and liabilities:
Receivables	(590)	(186)	60
Inventories	(609)	(2)	61
Accounts payable and accrued liabilities	873	121	(87)
Other, net	(80)	49	(49)
Net cash provided by operating activities	905	1,315	1,163
Cash flows from investing activities
Capital expenditures	(816)	(587)	(432)
Proceeds from sale of discontinued operations, net of cash disposed	2,255	0	0
Proceeds from sale of property, plant and equipment	44	16	39
Net investment hedges	25	28	23
Other	(1)	8	(4)
Net cash provided by / (used for) investing activities	1,507	(535)	(374)
Cash flows from financing activities
Net change in revolving credit facility and short-term debt	12	29	(10)
Proceeds from long-term debt	144	110	2,216
Payments of long-term debt	(1,834)	(269)	(2,845)
Premiums paid to retire debt	(64)	0	0
Debt issuance costs	0	0	(18)
Foreign exchange derivatives related to debt	(25)	43	(16)
Finance lease payments	(2)	(3)	(15)
Dividends paid to noncontrolling interests	(122)	(87)	(101)
Contribution from noncontrolling interests	0	2	6
Dividends paid to shareholders	(105)	0	0
Common stock issued	2	2	4
Common stock repurchased	(950)	(66)	(7)
Net cash used for financing activities	(2,944)	(239)	(786)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(113)	34	1
Net change in cash, cash equivalents and restricted cash	(645)	575	4
Cash, cash equivalents and restricted cash at January 1	1,238	663	659
Cash, cash equivalents and restricted cash at December 31	$ 593	$ 1,238	$ 663