South Sea Baubles has the following (incomplete) balance sheet and income statement.

BALANCE SHEET AT END OF YEAR
(Figures in $ millions)
Assets	2018			2019			Liabilities and Shareholders' Equity	2018			2019
Current assets	$	107		$	225		Current liabilities	$	84		$	111
Net fixed assets		970			1,070		Long-term debt		685			920

INCOME STATEMENT, 2019
(Figures in $ millions)
Revenue	$	2,035
Cost of goods sold		1,115
Depreciation		435
Interest expense		257

Net fixed assets increased from $970 million to $1,070 million during 2019. What must have been South Seas gross investment in fixed assets during 2019?