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Accounting Policies (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Impact of revisions on previously issued consolidated statements of operations |  |  |  |  |  |  |  |  |  |  |  |
Other income (expense), net | $ (59) | $ (68) | $ (52) | $ (56) | $ (47) | $ (53) | $ (50) | $ (68) | $ (58) | $ (223) | $ (229) | $ (168)
Income (loss) from continuing operations before income taxes | 93 | 73 | 160 | 132 | 85 | (22) | 58 | (14) | 51 | 450 | 73 | (383)
Income (loss) from continuing operations | 88 | 53 | 122 | 93 | 71 | (59) | 42 | (45) | 44 | 339 | (18) | (343)
Net income (loss) | 86 | 59 | 120 | 88 | 62 | (76) | 31 | (69) | 35 | 329 | (79) | (524)
Impact of previously issued consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Other assets | 177 | 185 | 187 | 188 | 196 | 192 |  |  |  | 185 | 192 |
Total assets | 6,880 | 6,957 | 7,080 | 7,077 | 6,793 | 6,883 |  |  |  | 6,957 | 6,883 |
Cash and cash investments | 906 | 1,223 |  | 1,028 | 828 | 1,040 |  |  |  | 1,223 | 1,040 |
Short-term bank deposits |  |  |  | 195 | 204 |  |  |  |  |  |  |
Net cash (for) from investing activities | (6) |  |  | 62 | 70 |  |  |  |  |  |  |
Accounting for certain investments in private equity limited partnership funds | As Reported |  |  |  |  |  |  |  |  |  |  |  |
Impact of revisions on previously issued consolidated statements of operations |  |  |  |  |  |  |  |  |  |  |  |
Other income (expense), net |  | (71) | (58) | (57) | (53) | (57) | (57) | (66) | (49) | (239) | (229) | (177)
Income (loss) from continuing operations before income taxes |  | 70 | 154 | 131 | 79 | (26) | 51 | (12) | 60 | 434 | 73 | (392)
Income (loss) from continuing operations |  | 50 | 116 | 92 | 65 | (63) | 35 | (43) | (53) | 323 | (18) | (352)
Net income (loss) |  | 56 | 114 | 87 | 56 | (80) | 24 | (67) | 44 | 313 | (79) | (533)
Impact of previously issued consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Other assets |  | 161 | 166 | 173 | 182 | 184 |  |  |  | 161 | 184 |
Total assets |  | 6,933 | 7,059 | 7,062 | 6,779 | 6,875 |  |  |  | 6,933 | 6,875 |
Accounting for certain investments in private equity limited partnership funds | Correction |  |  |  |  |  |  |  |  |  |  |  |
Impact of revisions on previously issued consolidated statements of operations |  |  |  |  |  |  |  |  |  |  |  |
Other income (expense), net |  | 3 | 6 | 1 | 6 | 4 | 7 | (2) | (9) | 16 |  | 9
Income (loss) from continuing operations before income taxes |  | 3 | 6 | 1 | 6 | 4 | 7 | (2) | (9) | 16 |  | 9
Income (loss) from continuing operations |  | 3 | 6 | 1 | 6 | 4 | 7 | (2) | (9) | 16 |  | 9
Net income (loss) |  | 3 | 6 | 1 | 6 | 4 | 7 | (2) | (9) | 16 |  | 9
Impact of previously issued consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Other assets |  | 24 | 21 | 15 | 14 | 8 |  |  |  | 24 | 8 |
Total assets |  | 24 | 21 | 15 | 14 | 8 |  |  |  | 24 | 8 |
Classification of cash and cash investments | As Reported |  |  |  |  |  |  |  |  |  |  |  |
Impact of previously issued consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash investments |  |  |  | 1,223 | 1,032 |  |  |  |  |  |  |
Net cash (for) from investing activities |  |  |  | $ (51) | $ (30) |  |  |  |  |  |  |
Foreign short-term bank deposits | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Impact of previously issued consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Term | 3 months |  |  |  |  |  |  |  |  |  |  |
Foreign short-term bank deposits | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Impact of previously issued consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Term | 12 months |  |  |  |  |  |  |  |  |  |  |

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