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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Net Cash Provided by (Used in) Operating Activities | $ 2,330 | $ 2,579
Cash flows from investing activities: |  |
Sales of fixed maturity securities available-for-sale | 7,235 | 3,835
Maturities of fixed maturity securities available-for-sale | 545 | 406
Sales of equity securities | 3 | 180
Principal payments and sales of mortgage loans on real estate | 417 | 283
Cash invested in policy loans | 12 | 15
Purchases of fixed maturity securities available-for-sale | 9,885 | 4,875
Purchases of equity securities | (1) | (21)
Cash invested in mortgage loans on real estate | (783) | (604)
Principal payments on policy loans | 8 | 6
Cash invested in funds withheld at interest | 52 | 49
Proceeds from sale of businesses, net of cash transferred of $43 | (19) | 0
Purchases of property and equipment | (10) | (11)
Change in short-term investments | 223 | (19)
Change in other invested assets | 112 | (158)
Net cash provided by (used in) investing activities | (2,173) | (1,024)
Cash flows from financing activities: |  |
Dividends to stockholders | (95) | (87)
Proceeds from issuance of common stock, net | 0 | 481
Repayment of collateral finance and securitization notes | (65) | (160)
Proceeds from long-term debt issuance | 0 | 598
Debt issuance costs | 0 | (5)
Principal payments of long-term debt | (401) | (1)
Purchases of treasury stock | (2) | (162)
Exercise of stock options, net | 0 | 1
Change in cash collateral for derivative positions and other arrangements | 184 | 93
Deposits on universal life and other investment type policies and contracts | 599 | 1,004
Withdrawals on universal life and other investment type policies and contracts | (520) | (429)
Net cash provided by (used in) financing activities | (300) | 1,333
Effect of exchange rate changes on cash | (11) | (24)
Cash and cash equivalents, beginning of period | 3,408 | 1,449
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total | (154) | 2,864
Cash and cash equivalents, end of period | $ 3,254 | $ 4,313

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The increase (decrease) during the reporting period in the amount of cash held either as collateral directly or provided to third parties associated with derivative instruments. Upon the occurrence of any specified triggering event or condition associated with the derivative, these amounts can be utilized to recover all or a portion of the amounts due or payable under the derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
Name: | us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration