Consolidated Balance Sheets (unaudited) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 268.7	$ 282.5
Restricted cash and cash equivalents	0.2	0.4
Trade accounts receivable, less allowance of $3.1 (2019—$13.3)	239.8	307.0
Inventories	255.7	309.9
Other current assets	69.2	235.1
Total Current Assets	833.6	1,134.9
Properties and equipment, net of accumulated depreciation and amortization of $1,512.5 (2019—$1,497.0)	1,156.5	1,143.8
Goodwill	559.0	556.9
Technology and other intangible assets, net	326.3	342.8
Deferred income taxes	555.8	517.6
Investment in unconsolidated affiliate	167.4	181.9
Other assets	51.8	54.7
Total Assets	3,650.4	3,932.6
Current Liabilities
Debt payable within one year	18.8	23.1
Accounts payable	210.2	302.3
Other current liabilities	266.2	419.7
Total Current Liabilities	495.2	745.1
Debt payable after one year	1,985.6	1,957.3
Defined Benefit Pension Plan Liabilities Noncurrent Unfunded	449.4	434.6
Defined Benefit Pension Plan Liabilities Noncurrent Underfunded	83.1	85.2
Other liabilities	316.6	308.2
Total Liabilities	3,329.9	3,530.4
Commitments and Contingencies—Note 8
Equity
Common stock issued, par value $0.01; 300,000,000 shares authorized; outstanding: 66,190,280 (2019—66,735,913)	0.7	0.7
Paid-in capital	470.4	477.9
Retained earnings	712.1	730.5
Treasury stock, at cost: shares: 11,266,353 (2019—10,720,720)	(920.6)	(892.2)
Accumulated other comprehensive income (loss)	53.9	78.8
Total W. R. Grace & Co. Shareholders’ Equity	316.5	395.7
Noncontrolling interests	4.0	6.5
Total Equity	320.5	402.2
Total Liabilities and Equity	$ 3,650.4	$ 3,932.6