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v3.21.2

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Operating activities |  |
Net cash provided by (used in) operating activities | $ 2,107.0 | $ 3,110.4
Investing activities |  |
Fixed maturities available-for-sale and equity securities with intent to hold: Purchases | (11,065.1) | (12,060.6)
Fixed maturities available-for-sale and equity securities with intent to hold: Sales | 2,383.5 | 2,677.3
Fixed maturities available-for-sale and equity securities with intent to hold: Maturities | 8,162.3 | 6,247.7
Mortgage loans acquired or originated | (4,277.1) | (2,281.7)
Mortgage loans sold or repaid | 2,142.3 | 1,877.0
Real estate acquired | (187.8) | (177.1)
Real estate sold | 43.5 |
Net (purchases) sales of property and equipment | (108.9) | (82.9)
Net change in other investments | 40.0 | 160.4
Net cash provided by (used in) investing activities | (2,867.3) | (3,639.9)
Financing activities |  |
Issuance of common stock | 57.3 | 34.6
Acquisition of treasury stock | (585.1) | (232.0)
Payments for financing element derivatives | (27.6) | (22.2)
Purchase of subsidiary shares from noncontrolling interest | (24.2) | (0.9)
Dividends to common stockholders | (485.6) | (460.8)
Issuance of long-term debt |  | 608.8
Principal repayments of long-term debt | (1.4) | (65.3)
Net proceeds from (repayments of) short-term borrowings | 0.2 | (12.3)
Investment contract deposits | 7,341.8 | 7,798.7
Investment contract withdrawals | (6,566.4) | (6,520.3)
Net increase (decrease) in banking operation deposits | 1,346.9 | 441.8
Other |  | 0.2
Net cash provided by (used in) financing activities | 1,055.9 | 1,570.3
Net increase (decrease) in cash and cash equivalents | 295.6 | 1,040.8
Cash and cash equivalents at beginning of period | 2,849.8 | 2,515.9
Cash and cash equivalents at end of period | 3,145.4 | 3,556.7
Changes from re-designation of other postretirement employee benefits ("OPEB") plan assets to cover non-retiree benefits: |  |
Increases in equity securities re-designated from funded status of OPEB plan | 548.1 |
Increases in other investments re-designated from funded status of OPEB plan | 117.5 |
Decrease in tax receivable re-designated from funded status of OPEB plan | (9.1) |
Decrease in accumulated other comprehensive income ("AOCI") due to reclassifying excess assets out of funded status of OPEB plan | 9.1 |
Decrease in other assets due to reclassifying excess assets out of funded status of OPEB plan | (665.6) |
Assets received in kind from pension risk transfer transactions | $ 109.5 | $ 1,062.4

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