| In millions, except per share items | Jan-01-21 | Oct-02-20 | Jul-03-20 | Mar-31-20 | Dec-31-19 | Sep-30-19 | Jun-30-19 | Mar-31-19 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net income | 45 | 19 | 3 | -789 | 75 | 37 | 42 | -19 |
| Depreciation and amortization | 93 | 96 | 96 | 91 | 92 | 90 | 101 | 116 |
| Stock-based compensation | 10 | 10 | 7 | | 6 | 10 | 5 | |
| Deferred taxes | -31 | -1 | -16 | | 24 | -12 | -8 | |
| Change in working capital [+] | 30 | 19 | 43 | 34 | -17 | 18 | 60 | 5 |
| Accounts receivable | 26 | 43 | -18 | | -1 | -5 | 55 | |
| Other current assets | 9 | -17 | 24 | | -8 | 15 | 31 | |
| Other | -5 | -7 | 37 | 34 | -8 | 8 | -26 | 5 |
| Other operating activities | -30 | 21 | -1 | 850 | -60 | -8 | -15 | 66 |
| Cash from operations | 117 | 164 | 132 | 186 | 120 | 135 | 185 | 168 |
| |
| Capital expenditures [+] | -6 | -11 | -15 | 6 | -7 | -3 | -1 | 14 |
| Purchases of property and equipment | -6 | -11 | -15 | 6 | -7 | -3 | -1 | 14 |
| Sales of property and equipment | 1 | | 9 | | 77 | | | |
| Purchases of intangible assets | | | | | -1 | -2 | -1 | |
| Acquisitions | | | -53 | | | -265 | | |
| Other cash from investing | | | | -13 | | | | -32 |
| Cash from investing | -5 | -11 | -59 | -7 | 69 | -270 | -2 | -18 |
| |
| Cash dividends paid | -11 | -11 | -10 | 10 | -10 | -10 | -8 | 8 |
| Repurchase of common stock, net | | | | -111 | -14 | -17 | -15 | -59 |
| Option exercises | 1 | | | | | | | |
| Financing costs | | | | | | -3 | | |
| Other cash from financing | -89 | -65 | -106 | 15 | -261 | 181 | -57 | -109 |
| Cash from financing | -101 | -76 | -116 | -86 | -285 | 157 | -80 | -160 |
| |
| Free cash flow | 111 | 153 | 117 | 192 | 113 | 132 | 184 | 182 |
| Per share (diluted) | $0.68 | $0.95 | $728.34 | $1.19 | $0.70 | $0.81 | $1.13 | $1.10 |
| |
| Cash paid for interest | 27 | 26 | 28 | | 33 | 32 | 32 | |
| Cash paid for income taxes | 14 | 17 | | | -1 | 15 | -3 | |