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v3.19.1

FAIR VALUE MEASUREMENTS (Tables) | 3 Months Ended
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Mar. 31, 2019
Fair Value Disclosures [Abstract] |
Carrying value and fair value of debt instruments | The Evergy Companies measure the fair value of long-term debt using Level 2 measurements available as of the measurement date. The book value and fair value of the Evergy Companies' long-term debt and long-term debt of variable interest entities is summarized in the following table.
|  | March 31, 2019 |  | December 31, 2018
|  | Book Value |  | Fair Value |  | Book Value |  | Fair Value
Long-term debt(a) |  | (millions)
Evergy(b) |  | $ | 7,827.0 |  |  | $ | 8,130.5 |  |  | $ | 7,341.7 |  |  | $ | 7,412.1 |
Westar Energy |  | 3,690.0 |  |  | 3,884.4 |  |  | 3,689.8 |  |  | 3,771.3 |
KCP&L |  | 2,924.6 |  |  | 3,130.2 |  |  | 2,530.1 |  |  | 2,637.5 |
Long-term debt of variable interest entities(a) |  |  |  |  |  |  |  |
Evergy |  | $ | 51.1 |  |  | $ | 50.9 |  |  | $ | 81.4 |  |  | $ | 81.3 |
Westar Energy |  | 51.1 |  |  | 50.9 |  |  | 81.4 |  |  | 81.3 |
(a) Includes current maturities. (b) Book value as of March 31, 2019 and December 31, 2018, includes $136.8 million and $144.8 million, respectively, of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Westar Energy merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument.
Fair value of assets and liabilities | The following tables include the Evergy Companies' balances of financial assets and liabilities measured at fair value on a recurring basis.
Description | March 31, 2019 |  | Level 1 |  | Level 2 | Level 3 | NAV
Westar Energy |  | (millions)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nuclear decommissioning trust(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domestic equity funds |  | $ | 80.1 |  |  |  | $ | 73.6 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 6.5 |  |
International equity funds |  | 46.5 |  |  |  | 46.5 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Core bond fund |  | 34.6 |  |  |  | 34.6 |  |  |  | — |  |  |  | — |  |  |  | — |  |
High-yield bond fund |  | 20.6 |  |  |  | 20.6 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Emerging markets bond fund |  | 16.4 |  |  |  | 16.4 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Combination debt/equity/other fund |  | 14.7 |  |  |  | 14.7 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Alternative investments fund |  | 23.3 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 23.3 |  |
Real estate securities fund |  | 12.0 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 12.0 |  |
Cash equivalents |  | 0.2 |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total nuclear decommissioning trust |  | 248.4 |  |  |  | 206.6 |  |  |  | — |  |  |  | — |  |  |  | 41.8 |  |
Rabbi trust |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Core bond fund |  | 24.7 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 24.7 |  |
Combination debt/equity/other fund |  | 6.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 6.2 |  |
Cash equivalents |  | 0.2 |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total rabbi trust |  | 31.1 |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | 30.9 |  |
Total |  | $ | 279.5 |  |  |  | $ | 206.8 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 72.7 |  |
KCP&L |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nuclear decommissioning trust(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities |  | $ | 188.3 |  |  |  | $ | 188.3 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | — |  |
Debt securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury |  | 46.0 |  |  |  | 46.0 |  |  |  | — |  |  |  | — |  |  |  | — |  |
U.S. Agency |  | 0.4 |  |  |  | — |  |  |  | 0.4 |  |  |  | — |  |  |  | — |  |
State and local obligations |  | 2.1 |  |  |  | — |  |  |  | 2.1 |  |  |  | — |  |  |  | — |  |
Corporate bonds |  | 30.6 |  |  |  | — |  |  |  | 30.6 |  |  |  | — |  |  |  | — |  |
Foreign governments |  | 0.1 |  |  |  | — |  |  |  | 0.1 |  |  |  | — |  |  |  | — |  |
Cash equivalents |  | 2.9 |  |  |  | 2.9 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Other |  | (0.5 | ) |  |  | — |  |  |  | (0.5 | ) |  |  | — |  |  |  | — |  |
Total nuclear decommissioning trust |  | 269.9 |  |  |  | 237.2 |  |  |  | 32.7 |  |  |  | — |  |  |  | — |  |
Self-insured health plan trust(b) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities |  | 0.5 |  |  |  | 0.5 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Debt securities |  | 4.3 |  |  |  | 0.4 |  |  |  | 3.9 |  |  |  | — |  |  |  | — |  |
Cash and cash equivalents |  | 6.7 |  |  |  | 6.7 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Other |  | 1.1 |  |  |  | — |  |  |  | 1.1 |  |  |  | — |  |  |  | — |  |
Total self-insured health plan trust |  | 12.6 |  |  |  | 7.6 |  |  |  | 5.0 |  |  |  | — |  |  |  | — |  |
Total |  | $ | 282.5 |  |  |  | $ | 244.8 |  |  |  | $ | 37.7 |  |  |  | $ | — |  |  |  | $ | — |  |
Other Evergy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rabbi trusts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income fund |  | $ | 13.1 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 13.1 |  |
Cash and cash equivalents |  | 0.4 |  |  |  | 0.4 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total rabbi trusts |  | $ | 13.5 |  |  |  | $ | 0.4 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 13.1 |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps(c) |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | — |  |
Total |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | — |  |
Evergy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nuclear decommissioning trust(a) |  | $ | 518.3 |  |  |  | $ | 443.8 |  |  |  | $ | 32.7 |  |  |  | $ | — |  |  |  | $ | 41.8 |  |
Rabbi trusts |  | 44.6 |  |  |  | 0.6 |  |  |  | — |  |  |  | — |  |  |  | 44.0 |  |
Self-insured health plan trust(b) |  | 12.6 |  |  |  | 7.6 |  |  |  | 5.0 |  |  |  | — |  |  |  | — |  |
Total |  | $ | 575.5 |  |  |  | $ | 452.0 |  |  |  | $ | 37.7 |  |  |  | $ | — |  |  |  | $ | 85.8 |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps(c) |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | — |  |
Total |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | 19.2 |  |  |  | $ | — |  |  |  | $ | — |  |
Description | December 31, 2018 | Level 1 | Level 2 | Level 3 | NAV
Westar Energy |  | (millions)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nuclear decommissioning trust(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domestic equity funds |  | $ | 70.6 |  |  |  | $ | 63.9 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 6.7 |  |
International equity funds |  | 36.2 |  |  |  | 36.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Core bond fund |  | 37.5 |  |  |  | 37.5 |  |  |  | — |  |  |  | — |  |  |  | — |  |
High-yield bond fund |  | 18.9 |  |  |  | 18.9 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Emerging markets bond fund |  | 15.4 |  |  |  | 15.4 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Combination debt/equity/other fund |  | 12.9 |  |  |  | 12.9 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Alternative investments fund |  | 24.1 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 24.1 |  |
Real estate securities fund |  | 11.8 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 11.8 |  |
Cash equivalents |  | 0.1 |  |  |  | 0.1 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total nuclear decommissioning trust |  | 227.5 |  |  |  | 184.9 |  |  |  | — |  |  |  | — |  |  |  | 42.6 |  |
Rabbi trust |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Core bond fund |  | 24.8 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 24.8 |  |
Combination debt/equity/other fund |  | 5.6 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 5.6 |  |
Cash equivalents |  | 0.2 |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total rabbi trust |  | 30.6 |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | 30.4 |  |
Total |  | $ | 258.1 |  |  |  | $ | 185.1 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 73.0 |  |
KCP&L |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nuclear decommissioning trust(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities |  | $ | 166.6 |  |  |  | $ | 166.6 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | — |  |
Debt securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury |  | 42.1 |  |  |  | 42.1 |  |  |  | — |  |  |  | — |  |  |  | — |  |
U.S. Agency |  | 0.4 |  |  |  | — |  |  |  | 0.4 |  |  |  | — |  |  |  | — |  |
State and local obligations |  | 2.1 |  |  |  | — |  |  |  | 2.1 |  |  |  | — |  |  |  | — |  |
Corporate bonds |  | 30.9 |  |  |  | — |  |  |  | 30.9 |  |  |  | — |  |  |  | — |  |
Foreign governments |  | 0.1 |  |  |  | — |  |  |  | 0.1 |  |  |  | — |  |  |  | — |  |
Cash equivalents |  | 1.7 |  |  |  | 1.7 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Other |  | 0.7 |  |  |  | 0.7 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total nuclear decommissioning trust |  | 244.6 |  |  |  | 211.1 |  |  |  | 33.5 |  |  |  | — |  |  |  | — |  |
Self-insured health plan trust(b) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities |  | 0.5 |  |  |  | 0.5 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Debt securities |  | 3.9 |  |  |  | 0.3 |  |  |  | 3.6 |  |  |  | — |  |  |  | — |  |
Cash and cash equivalents |  | 8.0 |  |  |  | 8.0 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Total self-insured health plan trust |  | 12.4 |  |  |  | 8.8 |  |  |  | 3.6 |  |  |  | — |  |  |  | — |  |
Total |  | $ | 257.0 |  |  |  | $ | 219.9 |  |  |  | $ | 37.1 |  |  |  | $ | — |  |  |  | $ | — |  |
Other Evergy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rabbi trusts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income fund |  | $ | 13.2 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 13.2 |  |
Total rabbi trusts |  | $ | 13.2 |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | — |  |  |  | $ | 13.2 |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps(c) |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | — |  |
Total |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | — |  |
Evergy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nuclear decommissioning trust(a) |  | $ | 472.1 |  |  |  | $ | 396.0 |  |  |  | $ | 33.5 |  |  |  | $ | — |  |  |  | $ | 42.6 |  |
Rabbi trust |  | 43.8 |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | 43.6 |  |
Self-insured health plan trust(b) |  | 12.4 |  |  |  | 8.8 |  |  |  | 3.6 |  |  |  | — |  |  |  | — |  |
Total |  | $ | 528.3 |  |  |  | $ | 405.0 |  |  |  | $ | 37.1 |  |  |  | $ | — |  |  |  | $ | 86.2 |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps(c) |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | — |  |
Total |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | 5.4 |  |  |  | $ | — |  |  |  | $ | — |  |
(a) | Fair value is based on quoted market prices of the investments held by the trust and/or valuation models.
(b) | Fair value is based on quoted market prices of the investments held by the trust. Debt securities classified as Level 1 are comprised of U.S. Treasury securities. Debt securities classified as Level 2 are comprised of corporate bonds, U.S. Agency, state and local obligations, and other asset-backed securities.
(c) | The fair value of interest rate swaps are determined by calculating the net present value of expected payments and receipts under the interest rate swaps using observable market inputs including interest rates and LIBOR swap rates.
Fair value investments, entities that calculate NAV | The following table provides additional information on these Evergy and Westar Energy investments.
| March 31, 2019 |  | December 31, 2018 |  | March 31, 2019
| Fair |  | Unfunded |  | Fair |  | Unfunded |  | Redemption |  | Length of
| Value |  | Commitments |  | Value |  | Commitments |  | Frequency |  | Settlement
Westar Energy | (millions) |  |  |  |
Nuclear decommissioning trust: |  |  |  |  |
Domestic equity funds | $ | 6.5 |  |  | $ | 4.0 |  |  | $ | 6.7 |  |  | $ | 4.3 |  |  | (a) |  | (a)
Alternative investments fund(b) | 23.3 |  |  | — |  |  | 24.1 |  |  | — |  |  | Quarterly |  | 65 days
Real estate securities fund(b) | 12.0 |  |  | — |  |  | 11.8 |  |  | — |  |  | Quarterly |  | 65 days
Total | $ | 41.8 |  |  | $ | 4.0 |  |  | $ | 42.6 |  |  | $ | 4.3 |  |  |  |  |
Rabbi trust: |  |  |  |  |  |  |  |  |  |  |
Core bond fund | $ | 24.7 |  |  | $ | — |  |  | $ | 24.8 |  |  | $ | — |  |  | (c) |  | (c)
Combination debt/equity/other fund | 6.2 |  |  | — |  |  | 5.6 |  |  | — |  |  | (c) |  | (c)
Total | $ | 30.9 |  |  | $ | — |  |  | $ | 30.4 |  |  | $ | — |  |  |  |  |
Other Evergy |  |  |  |  |  |  |  |  |  |  |
Rabbi trusts: |  |  |  |  |  |  |  |  |  |  |
Fixed income fund | $ | 13.1 |  |  | $ | — |  |  | $ | 13.2 |  |  | $ | — |  |  | (c) |  | (c)
Total Evergy investments at NAV | $ | 85.8 |  |  | $ | 4.0 |  |  | $ | 86.2 |  |  | $ | 4.3 |  |  |  |  |
(a) | This investment is in five long-term private equity funds that do not permit early withdrawal. Investments in these funds cannot be distributed until the underlying investments have been liquidated, which may take years from the date of initial liquidation. Three funds have begun to make distributions. The initial investment in the fourth and fifth fund occurred in the second quarter of 2016 and first quarter of 2018, respectively. The fourth fund's term is 15 years, subject to the general partner's right to extend the term for up to three additional one-year periods. The fifth fund's term will be 15 years after the initial closing date, subject to additional extensions approved by the Advisory Committee to provide for an orderly liquidation of fund investments and dissolution of the fund.
(b) | There is a holdback on final redemptions.
(c) | This investment can be redeemed immediately and is not subject to any restrictions on redemptions.
Fair value recurring gain (loss) included in earnings | The following table summarizes the net unrealized gains (losses) for the Evergy Companies' nuclear decommissioning trusts and rabbi trusts.
Three Months Ended March 31 |  | 2019 |  | 2018 |
Westar Energy |  | (millions) |
Nuclear decommissioning trust - equity securities |  | $ | 17.2 |  |  | $ | (11.7 | ) |
Rabbi trust |  | 1.3 |  |  | (0.5 | ) |
Total |  | $ | 18.5 |  |  | $ | (12.2 | ) |
KCP&L(a) |  |  |  |  |
Nuclear decommissioning trust - equity securities |  | $ | 20.7 |  |  | $ | (3.6 | ) |
Nuclear decommissioning trust - debt securities |  | 2.1 |  |  | (1.6 | ) |
Total |  | $ | 22.8 |  |  | $ | (5.2 | ) |
Evergy |  |  |  |  |
Nuclear decommissioning trust - equity securities |  | $ | 37.9 |  |  | $ | (11.7 | ) |
Nuclear decommissioning trust - debt securities |  | 2.1 |  |  | — |  |
Rabbi trusts |  | 0.5 |  |  | (0.5 | ) |
Total |  | $ | 40.5 |  |  | $ | (12.2 | ) |
(a) KCP&L amounts are not included in consolidated Evergy for the three months ended March 31, 2018.

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
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