In millions, except per share items | Mar-31-19 | Dec-31-18 | Sep-30-18 | Jun-30-18 | Mar-31-18 | Dec-31-17 | Sep-30-17 | Jun-30-17 |
| 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
Cash flows from operating activities: | | | | | | | | |
Net earnings (loss) | -269.0 | -134.0 | -53.0 | -132.0 | -324.0 | -1,546.0 | 123.0 | -225.0 |
Adjustments to reconcile net earnings to net cash from operating activities: | | | | | | | | |
Depreciation and amortization | 405.0 | 494.0 | 489.0 | 474.0 | 479.0 | 597.0 | 583.0 | 557.0 |
Stock-based compensation | 58.0 | 50.0 | 56.0 | 53.0 | 51.0 | 34.0 | -25.0 | 40.0 |
Realized (gain) loss on foreign currency forwards | | | | | | | | |
(Gain) loss on equity securities | -22.0 | | 39.0 | 98.0 | -37.0 | | | |
Deferred income tax expense (benefit) | -3.0 | -43.0 | -475.0 | -136.0 | 44.0 | -918.0 | -181.0 | -95.0 |
Other noncash charges (credits), net | -7.0 | -62.0 | -1.0 | 105.0 | -35.0 | 96.0 | -89.0 | -18.0 |
Changes in operating assets and liabilities | | | | | | | | |
Current and other assets | -486.0 | 114.0 | 151.0 | -170.0 | -400.0 | -16.0 | -2.0 | -220.0 |
Payables and other liabilities | 2,482.0 | -640.0 | -1,104.0 | 528.0 | 1,906.0 | -399.0 | -863.0 | 676.0 |
Net cash provided (used) by operating activities | 2,151.0 | -156.0 | -372.0 | 812.0 | 1,676.0 | -101.0 | -448.0 | 701.0 |
|
Cash flows from investing activities: | | | | | | | | |
Capital expended for property and equipment and capitalized software | -275.0 | -245.0 | -225.0 | -220.0 | -194.0 | -187.0 | -170.0 | -192.0 |
Purchases of short-term marketable securities and other investments | -462.0 | -114.0 | -45.0 | -802.0 | -867.0 | -98.0 | -722.0 | -211.0 |
Sales of short-term marketable securities | 7.0 | 445.0 | 1,068.0 | 307.0 | 317.0 | 176.0 | 746.0 | 168.0 |
Other, net | 6.0 | 12.0 | 19.0 | 8.0 | 14.0 | 5.0 | 144.0 | -134.0 |
Net cash provided (used) by investing activities | -724.0 | 85.0 | 777.0 | -707.0 | -730.0 | -105.0 | -178.0 | -355.0 |
|
Cash flows from financing activities: | | | | | | | | |
Borrowings of debt | 32.0 | 53.0 | 49.0 | 61.0 | 67.0 | 58.0 | 1,062.0 | 470.0 |
Repayments of debt | -37.0 | -63.0 | -554.0 | -61.0 | -66.0 | -62.0 | -69.0 | -428.0 |
Shares issued by subsidiary | 91.0 | 28.0 | 71.0 | 47.0 | 20.0 | 49.0 | 43.0 | 79.0 |
Shares repurchased by subsidiary | -25.0 | -303.0 | -194.0 | -224.0 | -202.0 | -158.0 | -40.0 | -69.0 |
Dividends paid by subsidiary | -40.0 | -40.0 | -40.0 | -38.0 | -39.0 | -39.0 | -38.0 | -36.0 |
Taxes paid in lieu of shares issued for stock-based compensation | | | | 2.0 | -2.0 | 9.0 | -1.0 | -3.0 |
Other financing activities, net | 4.0 | 52.0 | -57.0 | -2.0 | -6.0 | | -7.0 | 3.0 |
Net cash provided (used) by financing activities | 25.0 | -336.0 | -724.0 | -215.0 | -228.0 | -165.0 | 950.0 | 17.0 |
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | -11.0 | -139.0 | | | 17.0 | | | |
Net increase (decrease) in cash, cash equivalents and restricted cash | 1,441.0 | -257.0 | | | 735.0 | | | |