v2.4.0.8

Supplemental Cash Flow Information | 12 Months Ended
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Dec. 31, 2013
Supplemental Cash Flow Information |
Supplemental Cash Flow Information | Note 20—Supplemental Cash Flow Information Net cash provided by operating activities attributable to the net change in operating assets and liabilities were composed of the following (in millions):
|  | Years ended December 31, |
|  | 2013 |  | 2012 |  | 2011 |
Changes in operating assets and liabilities |  |  |  |  |  |  |
Decrease (increase) in accounts receivable |  | $ | 58 |  | $ | (139 | ) | $ | (174 | )
Increase in other current assets |  | (152 | ) | (73 | ) | (73 | )
Decrease in other assets |  | 87 |  | 12 |  | 26 |
Increase (decrease) in accounts payable and other current liabilities |  | (625 | ) | 931 |  | 978 |
Decrease in other long-term liabilities |  | (33 | ) | (63 | ) | (34 | )
Change in income taxes receivable / payable, net |  | (151 | ) | (156 | ) | 80 |
|  | $ | (816 | ) | $ | 512 |  | $ | 803 |
Additional cash flow information was as follows (in millions):
|  | Years ended December 31, |
|  | 2013 |  | 2012 |  | 2011 |
Certain cash operating activities |  |  |  |  |  |  |
Cash payments for interest |  | $ | 669 |  | $ | 719 |  | $ | 501 |
Cash payments for income taxes |  | 457 |  | 347 |  | 338 |
Non-cash investing and financing activities |  |  |  |  |  |  |
Capital expenditures, accrued at end of period (a) |  | $ | 167 |  | $ | 123 |  | $ | 62 |
Issuance of shares in exchange for noncontrolling interest (b) |  | — |  | 367 |  | — |
Non-cash proceeds received for the sale of assets (c) |  | — |  | 194 |  | — |
(a) These amounts represent additions to property and equipment for which we had accrued a corresponding liability in accounts payable. (b) On May 31, 2012, we issued 8.7 million shares to Quantum in a non-cash exchange for its interest in TPDI. See Note 16—Redeemable Noncontrolling Interest. (c) During the year ended December 31, 2012, we completed the sale of 38 drilling units to Shelf Drilling. In connection with the sale transactions, we received net cash proceeds of $568 million and non-cash proceeds in the form of preference shares with an aggregate stated value of $195 million. We recognized the preference shares at their estimated fair value measured at the time of the sale, in the aggregate amount of $194 million, including the fair value associated with the embedded derivatives. See Note 7—Discontinued Operations.

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