Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ 23	$ 13
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	38	39
Amortization	114	63
Restructuring charges, net of cash paid	8
Deferred taxes	(11)	(1)
Share-based compensation expense	9	6
Profit-sharing expense	6	7
Non-cash lease expense	33	16
Non-service pension benefit	(22)
Loss on extinguishment of debt		(9)
Pension contributions	(27)
Other, net	12	4
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(57)	(24)
Contract assets	(91)	(42)
Inventories	(19)	(5)
Prepaid expenses and other current assets	(25)	(2)
Accounts payable	34	30
Accrued liabilities and income taxes payable	(49)	(54)
Contract liabilities	29	13
Other assets and liabilities	(69)	(53)
Net cash provided by (used in) operating activities	(64)	19
Cash flows from investing activities:
Acquisitions, net of cash acquired	(2,875)	(12)
Purchases of property and equipment	(34)	(34)
Proceeds from sales of property, equipment, held for sale assets, and businesses	6	11
Net cash provided by (used in) investing activities	(2,903)	(35)
Cash flows from financing activities:
Proceeds from long-term borrowings	1,101	350
Payments on long-term borrowings	(31)	(318)
Payments of debt issuance costs	(25)	(4)
Repurchases of common stock	(22)
Proceeds from equity issuances	797	230
Payments of acquisition-related consideration	(1)	(70)
Restricted shares tendered for taxes	(1)	(1)
Net cash provided by (used in) financing activities	1,818	187
Effect of foreign currency exchange rate change on cash, cash equivalents, and restricted cash	(9)	3
Net increase (decrease) in cash, cash equivalents, and restricted cash	(1,158)	174
Cash, cash equivalents, and restricted cash, beginning of period	1,491	515
Cash, cash equivalents, and restricted cash, end of period	333	689
Supplemental cash flow disclosures:
Cash paid for interest	48	22
Cash paid for income taxes, net of refunds	16	45
Accrued consideration issued in business combinations		1
Share of common stock issued to profit sharing plan	$ 13	$ 13