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Other Financial Information Other Financial Information (Components of Receivables) (Details) - USD ($) $ in Thousands | Sep. 28, 2018 | Sep. 29, 2017
--- | --- | ---
Components of receivables: |  |
Amounts billed, net | $ 1,597,297 | $ 949,060
Unbilled receivables and other | 1,933,000 | 1,118,144
Retentions receivable | 24,633 | 35,339
Total receivables, net | 3,554,930 | 2,102,543
Other information about receivables: |  |
Amounts due from the United States federal government included above, net of advanced billings | 472,846 | 226,236
Claims receivable | $ 0 | $ 4,600

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