Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities:
Net income	$ 777	$ 1,013
Adjustments to reconcile net income to net cash flows provided by operating activities, net of acquisitions:
Depreciation and amortization	140	135
Deferred income tax benefit	(51)	(31)
Stock compensation cost	44	29
Loss on fixed asset impairment	55	0
Loss on disposal of business	0	19
Change in:
Accounts receivable, net	(79)	(153)
Contract assets and liabilities, current	277	108
Inventories, net	(101)	31
Other current assets	57	2
Accounts payable	19	(42)
Accrued liabilities	(81)	(94)
Pension contributions	(28)	(25)
Other operating activities, net	142	23
Net cash flows provided by operating activities	1,171	1,015
Investing Activities:
Capital expenditures	(112)	(98)
Investments in businesses, net of cash acquired (Note 8)	(50)	(39)
Investments in equity securities	(51)	0
Payments on settlements of derivative contracts	(63)	(1)
Other investing activities, net	(13)	(12)
Net cash flows used in investing activities	(289)	(150)
Financing Activities:
Proceeds from issuance of long-term debt	6,300	0
Payment of long-term debt issuance costs	(43)	0
Repayment of long-term debt	(750)	0
Increase in short-term borrowings, net	510	18
Net transfers to UTC	(6,330)	(598)
Dividends paid on Common Stock	(173)	0
Dividends paid to noncontrolling interest	(125)	(132)
Other financing activities, net	22	18
Net cash flows used in financing activities	(589)	(694)
Effect of foreign exchange rate changes on cash and cash equivalents	0	(41)
Net increase in cash and cash equivalents	293	130
Cash, cash equivalents and restricted cash, beginning of year	1,459	1,346
Cash, cash equivalents and restricted cash, end of period	1,752	1,476
Less: Restricted cash	19	16
Cash and cash equivalents, end of period	$ 1,733	$ 1,460