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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Cash flows from operating activities:    
Net income (loss) $ (131) $ 86
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation 62 52
Amortization 134 26
Impairment of goodwill 197 12
Deferred taxes (49) 1
Share-based compensation expense 4 35
Other, net 3  
Changes in operating assets and liabilities, net of effects of business acquisitions:    
Accounts receivable 93 (1)
Contract assets (27) (113)
Inventories 1 (4)
Prepaid expenses and other assets (19) (18)
Accounts payable (14) 12
Accrued liabilities and income taxes payable 46 74
Contract liabilities 57 3
Other liabilities (28) (20)
Net cash provided by operating activities 329 145
Cash flows from investing activities:    
Acquisitions, net of cash acquired (6) (6)
Purchases of property and equipment (24) (53)
Proceeds from sales of property, equipment, held for sale assets and disposals of businesses 13 7
Advances on related-party and other notes receivable   (4)
Payments received on related-party and other notes receivable   5
Net cash used in investing activities (17) (51)
Cash flows from financing activities:    
Net short-term debt   76
Proceeds from long-term borrowings 2  
Payments on long-term borrowings (16) (17)
Proceeds from exercise of warrants 3  
Payments of acquisition-related consideration (90) (16)
Distributions paid   (53)
Net cash used in financing activities (101) (10)
Net increase in cash and cash equivalents 211 84
Cash and cash equivalents, beginning of period 256 54
Cash and cash equivalents, end of period 467 138
Supplemental schedule of disclosures of cash flow information:    
Cash paid for interest 37 19
Cash paid for income taxes, net of refunds $ 19 $ 7