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v3.10.0.1

Consolidated Statements of Cash Flows - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 24, 2018 | Jun. 25, 2017
Operating activities |  |
Net earnings | $ 2,320 | $ 1,744
Adjustments to reconcile net earnings to net cash provided by operating activities |  |
Depreciation and amortization | 566 | 581
Stock-based compensation | 98 | 101
Severance and restructuring charges | 96 | 0
Changes in assets and liabilities |  |
Receivables, net | (217) | (619)
Contract assets | (1,289) | (170)
Inventories | (160) | (38)
Accounts payable | 1,224 | 940
Contract liabilities | (615) | (388)
Postretirement benefit plans | (2,790) | 685
Income taxes | 928 | 3
Other, net | 399 | 371
Net cash provided by operating activities | 560 | 3,210
Investing activities |  |
Capital expenditures | (480) | (448)
Other, net | 151 | 9
Net cash used for investing activities | (329) | (439)
Financing activities |  |
Dividends paid | (1,156) | (1,069)
Repurchases of common stock | (610) | (1,000)
Other, net | (145) | (87)
Net cash used for financing activities | (1,911) | (2,156)
Net change in cash and cash equivalents | (1,680) | 615
Cash and cash equivalents at beginning of period | 2,861 | 1,837
Cash and cash equivalents at end of period | $ 1,181 | $ 2,452

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