Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating activities:
Net income (loss)	$ 84	$ 25
Adjustments to reconcile net income (loss) to net cash provided by operations:
Depreciation and amortization	376	399
Impairment of long-lived assets and assets held for sale	127	724
Net change in operating assets and liabilities	(1,076)	(666)
Deferred income taxes – net and uncertain tax positions	(11)	(233)
Stock-based compensation	31	30
Net loss (gain) from investments and from sale of long lived assets	74	24
Other items	(10)	2
Net cash provided by (used in) operating activities	(405)	305
Investing activities:
Beneficial interest collected in exchange for securitized accounts receivables	476	368
Purchases of property, plant and equipment	(150)	(128)
Proceeds from sale of business and long lived assets	138	6
Proceeds from sale of investments and other investing activities	44	6
Net cash provided by investing activities	508	252
Financing activities:
Repayment of senior notes and loans and other long-term liabilities	0	(700)
Redemption of convertible senior notes	(491)	0
Other financing activities	(2)	0
Net cash used in financing activities	(493)	(700)
Translation adjustment on cash and cash equivalents	(44)	(28)
Net change in cash and cash equivalents	(434)	(171)
Balance of cash and cash equivalents at beginning of period	2,177	1,975
Balance of cash and cash equivalents at end of period	1,743	1,804
Non-cash financing and investing activities:
Beneficial interest obtained in exchange for securitized accounts receivables	$ 488	$ 375